Posts tagged ‘howto’

Optical 60x90 High-powered HD Zoom Binoculars Outdoor Camping Tourism Telescope Optical 60x90 High-powered HD Zoom Binoculars Outdoor Camping Tourism Telescope Paypal US $37.55 21d 19h 33m
10x21 Optical Lens Pocket Monocular Telescope Blk Gray 10x21 Optical Lens Pocket Monocular Telescope Blk Gray Paypal 0 Bid US $19.41 5h 16m
Brand Hot  Nikula Mini 10-30x25 Zoom Optical Monocular Binoculars Telescopes Q3 Brand Hot Nikula Mini 10-30x25 Zoom Optical Monocular Binoculars Telescopes Q3 Paypal 0 Bid US $24.91 14h 40m
Nikula Mini 10-30x25 Zoom Optical Monocular Binoculars Telescopes New V1 Nikula Mini 10-30x25 Zoom Optical Monocular Binoculars Telescopes New V1 Paypal 0 Bid US $25.84 15h 15m
New Nikula Mini 10-30x25 High Power Zoom Optical Monocular Telescopes Outdoor New Nikula Mini 10-30x25 High Power Zoom Optical Monocular Telescopes Outdoor Paypal US $27.99 28d 21h 26m
10-30x 25mm Zoom Optical Monocular Telescope for Camping Hunting Marine Sports 10-30x 25mm Zoom Optical Monocular Telescope for Camping Hunting Marine Sports Paypal 0 Bid US $9.99 12h 26m
Portable 8x21 Monocular Optical Lens Telescope Outdoor Birding Sport Viewfinder Portable 8x21 Monocular Optical Lens Telescope Outdoor Birding Sport Viewfinder Paypal 2 Bids US $.99 13h 4m
10X Optical Zoom Lens Telescope Tripod for Apple iPhone 4G 4S Mobile Cell Phone 10X Optical Zoom Lens Telescope Tripod for Apple iPhone 4G 4S Mobile Cell Phone Paypal 0 Bid US $20.99 17h 8m
10-30x25 Zoom Brand New High Quality Nikula Mini  Optical Monocular Telescopes 10-30x25 Zoom Brand New High Quality Nikula Mini Optical Monocular Telescopes Paypal US $23.29 27d 1h 48m
New + 6x Optical Zoom Telescope Lens Kit + Case for iPhone 4 4G 4S Fashionable New + 6x Optical Zoom Telescope Lens Kit + Case for iPhone 4 4G 4S Fashionable Paypal 1 Bid US $.99 2d 14h 8m
Carson Optical SkyWatcher JC-1000 60mm Telescope Carson Optical SkyWatcher JC-1000 60mm Telescope Paypal US $45.00 2d 14h 14m
Meade 114mm 4.5 Meade 114mm 4.5" short Reflector optical telescope tube Paypal US $39.95 24d 3h 56m
10-30x25mm Zoom Focus Adjustable Optical Monocular Telescope For Camping Hunting 10-30x25mm Zoom Focus Adjustable Optical Monocular Telescope For Camping Hunting Paypal 0 Bid US $9.95 1d 13h 28m
Meade 76MM optical telescope reflector tube assembly Meade 76MM optical telescope reflector tube assembly Paypal 0 Bid US $26.95 1d 13h 40m
Black 35mm Lens 4X Optical Binoculars Telescope w String Black 35mm Lens 4X Optical Binoculars Telescope w String Paypal 0 Bid US $9.91 1d 17h 12m
8x Optical Telephone Lens Long Focal Telescope for Cellphone Mobile Phone 8x Optical Telephone Lens Long Focal Telescope for Cellphone Mobile Phone Paypal US $11.69 10d 20h 40m
New Nikula Mini 10-30x25 Zoom Optical Monocular Binoculars Telescopes New Nikula Mini 10-30x25 Zoom Optical Monocular Binoculars Telescopes Paypal US $23.59 27d 51m
New 10-30x25mm Zoom outdoor Optical Monocular Telescope New 10-30x25mm Zoom outdoor Optical Monocular Telescope Paypal US $18.13 27d 23h 24m
10-30x25 Zoom High Quality Nikula Mini Optical Monocular Telescopes New 10-30x25 Zoom High Quality Nikula Mini Optical Monocular Telescopes New Paypal US $29.20 28d 12h 15m
New Mini Military 6X18 Watch Spotting Scope Monocular Optical Telescope for Gift New Mini Military 6X18 Watch Spotting Scope Monocular Optical Telescope for Gift Paypal US $8.65 14d 3h 58m
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Optical Telescope
Optical Telescope
What is the world's largest optical telescope?


Current, under construction and proposed -

http://astro.nineplanets.org/bigeyes.html

Optical 60x90 High-powered HD Zoom Binoculars Outdoor Camping Tourism Telescope Optical 60x90 High-powered HD Zoom Binoculars Outdoor Camping Tourism Telescope Paypal US $37.55 21d 19h 33m
10x21 Optical Lens Pocket Monocular Telescope Blk Gray 10x21 Optical Lens Pocket Monocular Telescope Blk Gray Paypal 0 Bid US $19.41 5h 16m
Brand Hot  Nikula Mini 10-30x25 Zoom Optical Monocular Binoculars Telescopes Q3 Brand Hot Nikula Mini 10-30x25 Zoom Optical Monocular Binoculars Telescopes Q3 Paypal 0 Bid US $24.91 14h 40m
Nikula Mini 10-30x25 Zoom Optical Monocular Binoculars Telescopes New V1 Nikula Mini 10-30x25 Zoom Optical Monocular Binoculars Telescopes New V1 Paypal 0 Bid US $25.84 15h 15m
New Nikula Mini 10-30x25 High Power Zoom Optical Monocular Telescopes Outdoor New Nikula Mini 10-30x25 High Power Zoom Optical Monocular Telescopes Outdoor Paypal US $27.99 28d 21h 26m
10-30x 25mm Zoom Optical Monocular Telescope for Camping Hunting Marine Sports 10-30x 25mm Zoom Optical Monocular Telescope for Camping Hunting Marine Sports Paypal 0 Bid US $9.99 12h 26m
Portable 8x21 Monocular Optical Lens Telescope Outdoor Birding Sport Viewfinder Portable 8x21 Monocular Optical Lens Telescope Outdoor Birding Sport Viewfinder Paypal 2 Bids US $.99 13h 4m
10X Optical Zoom Lens Telescope Tripod for Apple iPhone 4G 4S Mobile Cell Phone 10X Optical Zoom Lens Telescope Tripod for Apple iPhone 4G 4S Mobile Cell Phone Paypal 0 Bid US $20.99 17h 8m
10-30x25 Zoom Brand New High Quality Nikula Mini  Optical Monocular Telescopes 10-30x25 Zoom Brand New High Quality Nikula Mini Optical Monocular Telescopes Paypal US $23.29 27d 1h 48m
New + 6x Optical Zoom Telescope Lens Kit + Case for iPhone 4 4G 4S Fashionable New + 6x Optical Zoom Telescope Lens Kit + Case for iPhone 4 4G 4S Fashionable Paypal 1 Bid US $.99 2d 14h 8m
Carson Optical SkyWatcher JC-1000 60mm Telescope Carson Optical SkyWatcher JC-1000 60mm Telescope Paypal US $45.00 2d 14h 14m
Meade 114mm 4.5 Meade 114mm 4.5" short Reflector optical telescope tube Paypal US $39.95 24d 3h 56m
10-30x25mm Zoom Focus Adjustable Optical Monocular Telescope For Camping Hunting 10-30x25mm Zoom Focus Adjustable Optical Monocular Telescope For Camping Hunting Paypal 0 Bid US $9.95 1d 13h 28m
Meade 76MM optical telescope reflector tube assembly Meade 76MM optical telescope reflector tube assembly Paypal 0 Bid US $26.95 1d 13h 40m
Black 35mm Lens 4X Optical Binoculars Telescope w String Black 35mm Lens 4X Optical Binoculars Telescope w String Paypal 0 Bid US $9.91 1d 17h 12m
8x Optical Telephone Lens Long Focal Telescope for Cellphone Mobile Phone 8x Optical Telephone Lens Long Focal Telescope for Cellphone Mobile Phone Paypal US $11.69 10d 20h 40m
New Nikula Mini 10-30x25 Zoom Optical Monocular Binoculars Telescopes New Nikula Mini 10-30x25 Zoom Optical Monocular Binoculars Telescopes Paypal US $23.59 27d 51m
New 10-30x25mm Zoom outdoor Optical Monocular Telescope New 10-30x25mm Zoom outdoor Optical Monocular Telescope Paypal US $18.13 27d 23h 24m
10-30x25 Zoom High Quality Nikula Mini Optical Monocular Telescopes New 10-30x25 Zoom High Quality Nikula Mini Optical Monocular Telescopes New Paypal US $29.20 28d 12h 15m
New Mini Military 6X18 Watch Spotting Scope Monocular Optical Telescope for Gift New Mini Military 6X18 Watch Spotting Scope Monocular Optical Telescope for Gift Paypal US $8.65 14d 3h 58m
1PCS New 10X Optical Zoom Lens Telescope Tripod For Apple iPhone 4G Fashionable 1PCS New 10X Optical Zoom Lens Telescope Tripod For Apple iPhone 4G Fashionable Paypal US $19.49 28d 1h 22m
Camera Mobile Phone Telescope 8x Zoom Optical Universal Camera Mobile Phone Telescope 8x Zoom Optical Universal Paypal US $13.99 28d 13h 48m
10X30 Zoom Monocular Optical Telescope For camping New 10X30 Zoom Monocular Optical Telescope For camping New Paypal US $19.98 28d 10h 59m
Mini Military 6X18 Watch Spotting Scope Monocular Optical Telescope Outdoor Lens Mini Military 6X18 Watch Spotting Scope Monocular Optical Telescope Outdoor Lens Paypal US $7.99 23d 12h 41m
8X Zoom Optical Telescope Lens with Tripod For iPhone 4 and Case 8X Zoom Optical Telescope Lens with Tripod For iPhone 4 and Case Paypal US $44.99 21h 21m
10X 24mm Compact Zoom Outdoor Optical Binoculars Telescope Black New 10X 24mm Compact Zoom Outdoor Optical Binoculars Telescope Black New Paypal US $21.16 25d 17h 37m
10X 25mm Compact Black Outdoor Optical Binoculars Telescope New 10X 25mm Compact Black Outdoor Optical Binoculars Telescope New Paypal US $8.12 25d 17h 36m
30X 60mm Compact Camouflage Outdoor Optical Binoculars Telescope New 30X 60mm Compact Camouflage Outdoor Optical Binoculars Telescope New Paypal US $8.04 25d 17h 35m
30X 60mm Compact Outdoor Optical Binoculars Telescope New 30X 60mm Compact Outdoor Optical Binoculars Telescope New Paypal US $8.04 25d 17h 35m
Pocket 7x18mm Compact Monocular Outdoor Optical Telescope New Pocket 7x18mm Compact Monocular Outdoor Optical Telescope New Paypal US $5.79 25d 17h 34m
Pocket 16x40mm Compact Monocular Outdoor Optical Telescope New Pocket 16x40mm Compact Monocular Outdoor Optical Telescope New Paypal US $10.93 25d 17h 33m
Pocket 30x60mm Compact Monocular Outdoor Optical Telescope New Pocket 30x60mm Compact Monocular Outdoor Optical Telescope New Paypal US $19.47 25d 17h 32m
Carson Optical The X-Scope Microscope-Telescope Combination Kit Carson Optical The X-Scope Microscope-Telescope Combination Kit Paypal US $14.42 25d 2h 43m
Adjustable 7x18 Optical Lens Mini Monocular Telescope Adjustable 7x18 Optical Lens Mini Monocular Telescope Paypal US $14.05 25d 11m
Mini Military 6X18 Watch Spotting Scope Monocular Optical Telescope outdoor Lens Mini Military 6X18 Watch Spotting Scope Monocular Optical Telescope outdoor Lens Paypal US $8.99 13d 4h 47m
Nikula Power 10-30X25mm Zoom Optical Telescope Monocular bird,hunt,sport,concert Nikula Power 10-30X25mm Zoom Optical Telescope Monocular bird,hunt,sport,concert Paypal US $18.50 12d 19h 47m
Mini Outdoor Powerful 8x20 mini  Aluminum Alloy Optical monocular telescope Mini Outdoor Powerful 8x20 mini Aluminum Alloy Optical monocular telescope Paypal US $13.79 21d 2h 16m
10-30x25 Mini Zoom High Quality Brand Nikula Optical Monocular Telescopes New 10-30x25 Mini Zoom High Quality Brand Nikula Optical Monocular Telescopes New Paypal US $23.75 18d 19h 1m
TeleGizmos 365 Telescope Cover For All Telescopes 8 TeleGizmos 365 Telescope Cover For All Telescopes 8"-9" in Diamter Optical Tube Paypal US $69.00 19d 14h 44m
Periscope Tank Telescope Optical Eyepiece 1677-31163 Periscope Tank Telescope Optical Eyepiece 1677-31163 Paypal US $150.00 18d 20h 38m
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Bright yellow viewing telescope, Roscoff, Brittany, France Photo Mugs Bright yellow viewing telescope, Roscoff, Brittany, France Photo Mugs

 

Description

Bright yellow viewing telescope, Roscoff, Brittany, France. Bright yellow viewing telescope, Roscoff, Brittany, France Copyrighted Work Silverport Pictures

Cocoon Nebula Photo Mugs Cocoon Nebula Photo Mugs

 

Description

Cocoon Nebula. Optical image of the Cocoon Nebula (IC 5146) in the constellation Cygnus. This is an emission nebula, a large cloud of gas and dust that glows due to the ionisation of its hydrogen gas by ultraviolet radiation from nearby stars...

Helix nebula, planetary nebula Photo Mugs Helix nebula, planetary nebula Photo Mugs

 

Description

Helix nebula (NGC 7293), optical image. This is a planetary nebula, a series of shells of gas cast off from a Sun-like star towards the end of its life. The outer layers of the star expand as the core contracts, and they are cast off into space as the core becomes unstable and pulsates...

Carson Optical LED Flashlight (Red) Carson Optical LED Flashlight (Red)

List Price: $5.00

 

Description

The Carson StarMapLight Red-LED Flashlight SL-1 is a red LED flashlight for low-light use. This Carson Flashlight is great for astronomy, photographic darkrooms, or reading theater programs without disturbing others...

CST/Berger 54-135K Econo 20X Level Package with Tripod, Rod, and Carrying Case CST/Berger 54-135K Econo 20X Level Package with Tripod, Rod, and Carrying Case

List Price: $446.44

 
David White Automatic Level Package 26X David White Automatic Level Package 26X

List Price: $537.00

 

Description

Lock-Out Device. Protects compensator during transport and handling. Larger Aperture - Allows more light for a sharper image. Wire-Hung Magnetically Damped Compensator - Holds the level line of sight within + or - 15 arc minutes of level...

Search For ET Search For ET

 
Variable Premium Galilean Surgical or Dental Loupes 3.5x 420 to 460mm WD Glasses Variable Premium Galilean Surgical or Dental Loupes 3.5x 420 to 460mm WD Glasses

List Price: $349.95

 

Description

Outstanding optical quality and optimal focal alignment makes these loupes the perfect choice for dental, surgical, veterinary, jewelry and industrial professionals. These binocular loupes create a 3-dimensional view with extraordinary depth of focus ideal for inspections and procedures requiring use of both hands under magnification...

ALOMAR Zoom Art 6x Magnifying Glass- White / Grey ALOMAR Zoom Art 6x Magnifying Glass- White / Grey

 

Description

Quite often, it's the little things that spark great leaps of imagination. The city is a firmament constellated with tiny surprises; faint comet-trails there for the discovering; hidden points of "light" that often escape the naked eye...

Tundra 94LT50D Lint-Free Non-Abrasive Lens Cleaning Tissue Tundra 94LT50D Lint-Free Non-Abrasive Lens Cleaning Tissue

List Price: $3.99

 

Description

A soft thin Lint-Free tissue specially prepared for cleaning cameras, lenses, projectors, telescopes, magnifying glasses, microscopes, laboratory apparatus, fine optical instruments, etc. Tissues are processed for tensile strength and absorption qualities, cleans all optical surfaces crystal clear.

TourMate Optical 6X Zoom Lens Camera Telescope with Black Back Case For Apple iPad 2 (All Models) TourMate Optical 6X Zoom Lens Camera Telescope with Black Back Case For Apple iPad 2 (All Models)

 

Description

Using the iPad 2 to get long shots? We are! That's because we have TourMate - the 6 fold zoom telescope camera lens plus back case. It zooms to allow clear distant views such as watching a football game, attending a concert, touring in some places, examining some wild animals, etc...

New 6X Optical Zoom Lens Camera Telescope+Back Case for Apple iPad 2 iPad2 New 6X Optical Zoom Lens Camera Telescope+Back Case for Apple iPad 2 iPad2

 

Description

A perfect item for Apple iPad 2 users and lovers.
Smart design for focusing longer distance when taking photo or video.
Detachable lens that adds 6X optical magnification to your iPad 2 built-in camera...

Green Laser Astronomy Grade for Military, Lecturers and more with Double Bonus Micro L.E.D. Flashlight Keychain and Blue Microfiber Optical Cloth Green Laser Astronomy Grade for Military, Lecturers and more with Double Bonus Micro L.E.D. Flashlight Keychain and Blue Microfiber Optical Cloth

List Price: $99.99

 

Description

Super Double Bonus you now get our exclusive blue microfiber optical cloth to keep your green laser clean and shiny plus our Ultra Micro L.E.D. Flashlight Keychain! This high quality green laser pointer can reach up to 12,000ft...

Nikon 7072 Lens Pen Cleaning System Nikon 7072 Lens Pen Cleaning System

List Price: $11.95

 

Description

Comes with a handy retractable dust removal brush and a special non-liquid cleaning element, designed to never dry out : Safe and very easy to use

Bushnell Powerview 8x21 Compact Folding Roof Prism Binocular (Black) Bushnell Powerview 8x21 Compact Folding Roof Prism Binocular (Black)

List Price: $25.00

 

Description

The Bushnell(r) Powerview(r) Series of binoculars offers you compact, streamlined designs for bright, crisp views of wherever you're exploring.

Celestron SkyMaster Giant 15x70 Binoculars with Tripod Adapter Celestron SkyMaster Giant 15x70 Binoculars with Tripod Adapter

List Price: $119.95

 

Description

Binoculars come in a wide range of shapes and sizes these days, and an even wider range of prices. It's easy to spend less than $100 or more than $500 for what may appear to be, at least outwardly, comparable models...

Nikon Digital SLR Camera and Laptop Backpack Case with Nikon 60 Nikon Digital SLR Camera and Laptop Backpack Case with Nikon 60" Tripod with 3-Way Panhead + Accessory Kit for D40, D60, D3000, D3100, D5000, D5100, D7000, D800, D300s, D4, D3 & D3s

 

Description

Kit includes: ♦ 1) Nikon SLR Camera & Laptop Backpack ♦ 2) Nikon 60" Full Size Tripod with 3-Way Panhead (Black) ♦ 3) Nikon 3-Piece Lens Cleaning Kit (Microfiber Cloth/Fluid/Moist Cloths) ♦ 4) Nikon Microfiber Lens Cleaning Cloth Spudz ♦ 5) Precision Design Deluxe Hurricane Blower Made from rugged, weather-resistant nylon, this backpack will easily hold your camera, lenses, flash and accessories, while allowing you to keep...

Celestron 44102 400x Power Laboratory Biological Microscope Celestron 44102 400x Power Laboratory Biological Microscope

List Price: $194.95

 

Description

The Celestron(r) 400x Laboratory Biological Microscope comes with many scientific essentials such as a diaphragm and a condenser. Its efficient charm comes in its power and precision, with 3 different objective lenses and a monocular, adjustable head that rotates from 0 to 60 degrees for comfortable viewing.

Orion SpaceProbe 3 Altazimuth Reflector Telescope Orion SpaceProbe 3 Altazimuth Reflector Telescope

 

Description

Orion's surprising little Spaceprobe 3 has been picked by independent reviewers as one of the best telescopes in its price class. Unlike similar telescopes seen in discount stores, Orion has refined the Spaceprobe 3 by paying attention to the little details, and that make this telescope a great value...

Orion Observer 70mm Altazimuth Refractor Telescope Orion Observer 70mm Altazimuth Refractor Telescope

List Price: $129.99

 

Description

Our Observer 70 is the perfect telescope for that budding astronomer in your family. This scope excels in both quality and performance. Its 70mm multi-coated achromatic objective lens - focal length 700mm focal length (f/10) - gathers 36% more light than a 60mm...

Could the worlds most powerful optical telescope see the items that we left on the moon?


Such as the bases of the lunar modules, lunar rover etc.

No, no existing telescope can provide enough angular resolution. The Moon is just too far and those objects are just too small. The Hubble Telescope, one of the best telescopes we have, can only see things as large as a stadium on the Moon.

Lunar landing modules, some equipment and even foot tracks left by the astronauts have been photographed by the Lunar Reconnaissance Orbiter, which is basically a satellite orbiting the Moon.

http://www.nasa.gov/mission_pages/LRO/multimedia/lroimages/apollosites.html

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Dobsonia Telescope

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Orion SkyQuest XT8 Classic Dobsonian Telescope Orion SkyQuest XT8 Classic Dobsonian Telescope

 

Description

A powerful and capable telescope, the Orion SkyQuest XT8 Classic Dobsonian is one of our most popular reflectors due to its elegant combination of precision optics, mechanical simplicity, and rock-solid stability...

Celestron AstroMaster 114EQ 114mm Newtonian Telescope Celestron AstroMaster 114EQ 114mm Newtonian Telescope Paypal US $300.00 3h 47m
Meade DS-2130ATE 130mm (5 Meade DS-2130ATE 130mm (5") Newtonian Telescope Paypal 6 Bids US $76.00 8h 2m
Meade LXD75 SN-6AT (f/5) Schmidt-Newtonian Telescope *Tripod Not Included* Meade LXD75 SN-6AT (f/5) Schmidt-Newtonian Telescope *Tripod Not Included* Paypal US $599.00 11h 33m
Bushnell NorthStar 78-8831 76mm Newtonian Telescope (Hardly Used) Bushnell NorthStar 78-8831 76mm Newtonian Telescope (Hardly Used) Paypal US $199.99 1d 17h 21m
New White 6 New White 6" Newtonian Reflector Telescope w Tripod Paypal US $252.99 2d 1m
WHITE  6 WHITE 6" NEWTONIAN REFLECTOR TELESCOPE TRIPOD NEW Paypal US $217.88 2d 9h 5m
 Newtonian Telescope Collimator from OPT Unused Very Good Condition Newtonian Telescope Collimator from OPT Unused Very Good Condition Paypal 1 Bid US $42.00 2d 12h 40m
Orion ShortTube 4.5 EQ 114mm Newtonian Telescope Orion ShortTube 4.5 EQ 114mm Newtonian Telescope Paypal 13 Bids US $46.00 2d 13h 3m
Celestron NexStar 114eq 114mm Newtonian Telescope 114 eq Celestron NexStar 114eq 114mm Newtonian Telescope 114 eq Paypal 1 Bid US $49.99 2d 13h 26m
WHITE  6 WHITE 6" NEWTONIAN REFLECTOR TELESCOPE TRIPOD NEW FREE Paypal US $217.88 5h 51m
[COA P&T] 1.25 [COA P&T] 1.25" Laser collimator with 2" sleeve for newtonian telescope Paypal US $39.99 3d 18h 53m
celestron newtonian telescope celestron newtonian telescope Paypal 0 Bid US $75.00 3d 9h 18m
Bausch and Lomb Professional 200 114mm Newtonian Telescope 78-0200 $500 + Value Bausch and Lomb Professional 200 114mm Newtonian Telescope 78-0200 $500 + Value Paypal US $249.99 3d 12h 55m
Meade 5 Meade 5" newtonian Reflector telescope dust cap DS-2130 Paypal 0 Bid US $1.95 1d 14h 4m
2.5 2.5" Edmund telescope newtonian mirror blem coating Paypal 0 Bid US $2.95 1d 15h 29m
Meade 4.5 Meade 4.5" newtonian Reflector telescope dust cap Paypal 0 Bid US $1.95 1d 15h 37m
Used Celestron Newtonian 114MM Telescope Used Celestron Newtonian 114MM Telescope Paypal 1 Bid US $65.00 5d 1h 15m
Phenix D150F750 Newtonian Reflector telescope set Phenix D150F750 Newtonian Reflector telescope set Paypal US $260.80 27d 5h 20m
Cheshire Collimator for Newtonian Telescopes - long Cheshire Collimator for Newtonian Telescopes - long Paypal US $41.10 4h 35m
Vintage Criterion Telescope Brass Spider  Parts & mirror for Newtonian Reflector Vintage Criterion Telescope Brass Spider Parts & mirror for Newtonian Reflector Paypal 2 Bids US $20.50 6d 5h 59m
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newtonian telescopes
newtonian telescopes
How much can a newtonian telescope magnify an image by?


It depends on the focal length of the primary and the focal length of the eyepiece. Around 400x is considered a max usable magnification, but it depends on the seeing conditions in the sky.

Celestron AstroMaster 114EQ 114mm Newtonian Telescope Celestron AstroMaster 114EQ 114mm Newtonian Telescope Paypal US $300.00 3h 47m
Meade DS-2130ATE 130mm (5 Meade DS-2130ATE 130mm (5") Newtonian Telescope Paypal 6 Bids US $76.00 8h 2m
Meade LXD75 SN-6AT (f/5) Schmidt-Newtonian Telescope *Tripod Not Included* Meade LXD75 SN-6AT (f/5) Schmidt-Newtonian Telescope *Tripod Not Included* Paypal US $599.00 11h 33m
Bushnell NorthStar 78-8831 76mm Newtonian Telescope (Hardly Used) Bushnell NorthStar 78-8831 76mm Newtonian Telescope (Hardly Used) Paypal US $199.99 1d 17h 21m
New White 6 New White 6" Newtonian Reflector Telescope w Tripod Paypal US $252.99 2d 1m
WHITE  6 WHITE 6" NEWTONIAN REFLECTOR TELESCOPE TRIPOD NEW Paypal US $217.88 2d 9h 5m
 Newtonian Telescope Collimator from OPT Unused Very Good Condition Newtonian Telescope Collimator from OPT Unused Very Good Condition Paypal 1 Bid US $42.00 2d 12h 40m
Orion ShortTube 4.5 EQ 114mm Newtonian Telescope Orion ShortTube 4.5 EQ 114mm Newtonian Telescope Paypal 13 Bids US $46.00 2d 13h 3m
Celestron NexStar 114eq 114mm Newtonian Telescope 114 eq Celestron NexStar 114eq 114mm Newtonian Telescope 114 eq Paypal 1 Bid US $49.99 2d 13h 26m
WHITE  6 WHITE 6" NEWTONIAN REFLECTOR TELESCOPE TRIPOD NEW FREE Paypal US $217.88 5h 51m
[COA P&T] 1.25 [COA P&T] 1.25" Laser collimator with 2" sleeve for newtonian telescope Paypal US $39.99 3d 18h 53m
celestron newtonian telescope celestron newtonian telescope Paypal 0 Bid US $75.00 3d 9h 18m
Bausch and Lomb Professional 200 114mm Newtonian Telescope 78-0200 $500 + Value Bausch and Lomb Professional 200 114mm Newtonian Telescope 78-0200 $500 + Value Paypal US $249.99 3d 12h 55m
Meade 5 Meade 5" newtonian Reflector telescope dust cap DS-2130 Paypal 0 Bid US $1.95 1d 14h 4m
2.5 2.5" Edmund telescope newtonian mirror blem coating Paypal 0 Bid US $2.95 1d 15h 29m
Meade 4.5 Meade 4.5" newtonian Reflector telescope dust cap Paypal 0 Bid US $1.95 1d 15h 37m
Used Celestron Newtonian 114MM Telescope Used Celestron Newtonian 114MM Telescope Paypal 1 Bid US $65.00 5d 1h 15m
Phenix D150F750 Newtonian Reflector telescope set Phenix D150F750 Newtonian Reflector telescope set Paypal US $260.80 27d 5h 20m
Cheshire Collimator for Newtonian Telescopes - long Cheshire Collimator for Newtonian Telescopes - long Paypal US $41.10 4h 35m
Vintage Criterion Telescope Brass Spider  Parts & mirror for Newtonian Reflector Vintage Criterion Telescope Brass Spider Parts & mirror for Newtonian Reflector Paypal 2 Bids US $20.50 6d 5h 59m
Vintage Criterion Telescope Focuser ,   Kellner Eyepiece for Newtonian Reflector Vintage Criterion Telescope Focuser , Kellner Eyepiece for Newtonian Reflector Paypal 0 Bid US $40.00 6d 6h 20m
Vintage Criterion Dynascope Newtonian - Equatorial Mount - Reflector Telescope Vintage Criterion Dynascope Newtonian - Equatorial Mount - Reflector Telescope Paypal 0 Bid US $225.00 6d 9h 32m
Meade® Model 4501 114mm f/8 Newtonian TELESCOPE w\ Elect Control 259008, EUC, IB Meade® Model 4501 114mm f/8 Newtonian TELESCOPE w\ Elect Control 259008, EUC, IB Paypal US $148.49 26d 15h 38m
Phenix D114F900 Newtonian Reflector telescope set Phenix D114F900 Newtonian Reflector telescope set Paypal US $173.86 27d 5h 20m
Cheshire Collimator for Newtonian Telescopes - short Cheshire Collimator for Newtonian Telescopes - short Paypal US $35.57 4h 36m
GSO 2 GSO 2" Photo Visual Coma Corrector -Newtonian Telescope Paypal US $129.00 18d 2h 42m
Meade newtonian Reflector dust cap for 114mm or 4.5 Meade newtonian Reflector dust cap for 114mm or 4.5" mirror diameter telescopes Paypal US $2.95 24d 7h 57m
AUTOGRAPHED!! Celestron FirstScope 114 4.5 Newtonian Telescope AUTOGRAPHED!! Celestron FirstScope 114 4.5 Newtonian Telescope Paypal US $379.99 29d 14h 34m
Carson Red Planet 45-100x114mm Newtonian Reflector Telescope  RP-300 Carson Red Planet 45-100x114mm Newtonian Reflector Telescope RP-300 Paypal US $194.99 28d 16h 57m
76 x 900 Telescope Features Equatorial Newtonian Reflector with Tripod 76 x 900 Telescope Features Equatorial Newtonian Reflector with Tripod Paypal US $132.49 28d 13h 29m
Magnacraft 76 x 900 Equatorial Newtonian Reflector Telescope 5 Power $411.95 Magnacraft 76 x 900 Equatorial Newtonian Reflector Telescope 5 Power $411.95 Paypal US $133.29 13d 11h 52m
Celestron PowerSeeker 127 EQ 21049 127mm Newtonian Telescope Celestron PowerSeeker 127 EQ 21049 127mm Newtonian Telescope Paypal US $149.95 27d 10h 11m
Carson Red Planet 35-88x76mm Newtonian Reflector Telescope  RP-100 Carson Red Planet 35-88x76mm Newtonian Reflector Telescope RP-100 Paypal US $104.99 27d 7h 6m
CARSON  RP100  RED PLANET NEWTONIAN REFLECTOR TELESCOPE CARSON RP100 RED PLANET NEWTONIAN REFLECTOR TELESCOPE Paypal US $122.98 26d 18h 14m
16 INCH F/6 CUSTOM NEWTONIAN TELESCOPE MIRROR 16 INCH F/6 CUSTOM NEWTONIAN TELESCOPE MIRROR Paypal 0 Bid US $7,500.00 7d 5h 46m
Carson - RP-300 Redplanet 45100 x 114mm Newtonian Reflector Telescope Carson - RP-300 Redplanet 45100 x 114mm Newtonian Reflector Telescope Paypal US $217.58 25d 14h 19m
Carson RedPlanet RP-100 35-88 x 76 mm Newtonian Reflector Telescope Carson RedPlanet RP-100 35-88 x 76 mm Newtonian Reflector Telescope Paypal US $127.10 25d 2h 23m
Used Celestron Newtonian Telescope Model 31049 w/ Aluminum Tripod Eyepieces Used Celestron Newtonian Telescope Model 31049 w/ Aluminum Tripod Eyepieces Paypal US $80.00 23d 5h 24m
iOptron EQ 2 GEM w/ Newtonian N114 Reflector Telescope iOptron EQ 2 GEM w/ Newtonian N114 Reflector Telescope Paypal US $152.15 22d 18h 41m
TeleGizmos Telescope Cover For 10 TeleGizmos Telescope Cover For 10" Newtonian Reflector on Gem EQ Mounts Paypal US $169.00 19d 15h 20m
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7ft Newtonian (reflector) telescope Photo Mugs 7ft Newtonian (reflector) telescope Photo Mugs

 

Description

William Herschel made and sold many telescopes of this type. He used his own 7ft telescope (which would have been very similar to this one) with a 6.2 inch aperture magnifying images 227 times (depending on the eyepiece used), to make his second review of the heavens in 1781 from his house in New Kings Street, Bath...

Colored engraving of Newtonandamp;apos;s reflecting telescope Photo Mugs Colored engraving of Newtonandamp;apos;s reflecting telescope Photo Mugs

 

Description

Coloured engraving of Isaac Newtons reflectingtelescope, known also as the Newtonian telescope. This was the first reflectingtelescope ever displayed, based on a design of1668. In design it is much the same as reflectingtelescopes used by amateur astronomers today...

Black 6 Black 6" Newtonian Reflector Telescope 1400

List Price: $649.95

 

Description

BRAND NEW SHORT TUBE NEWTONIAN EQUATORIAL REFLECTOR TELESCOPE Diameter=150mm (6") - Focal point=750mm (30") and 1400mm (55") Full Coating = al+sio Clear aperture 6inches = 150mm Focal length 29.38inches = 750mm Focal ratio f/5 Mirror thickness 0...

Celestron 93625 Universal 1.25-inch Camera T-Adapter Celestron 93625 Universal 1.25-inch Camera T-Adapter

List Price: $30.95

 

Description

Celestron Telescope Astrophotography T-Adapter - 1-1/4in Universal 93625

Celestron 21024 FirstScope Telescope Celestron 21024 FirstScope Telescope

List Price: $73.95

 

Description

In 1609, world-renowned Italian scientist, Galileo Galilei, introduced an elementary telescope to the growing astronomy community, which sparked interest into the mysterious night sky for centuries to come...

Celestron 127EQ PowerSeeker Telescope Celestron 127EQ PowerSeeker Telescope

List Price: $225.95

 

Description

CES1071 Features: -Telescope. -PowerSeeker collection. -Color: Black. -Material: Aluminum. -127 mm (5'') Newtonian reflector. -3x Barlow lens triples the magnifying power of each eyepiece. -Quick and easy no-tool setup...

Killer Robot Logo Men's Tee Shirt in 12 colors Small thru 6XL Killer Robot Logo Men's Tee Shirt in 12 colors Small thru 6XL

 

Description

Great looking 100% cotton shirt. Please refer to our sizing chart for measurements.This design also available as a women's tee shirt, and a men's hoodie and sweat shirt in our other amazon.com listings.

got robots? Kids T Shirt In 5 Colors 2T thru Youth XL got robots? Kids T Shirt In 5 Colors 2T thru Youth XL

 

Description

Great looking 100% cotton shirt. Please refer to our sizing chart for measurements.This design also available as a men's or women's tee shirt, and a men's hoodie and sweat shirt in our other amazon.com listings.

Astronomers Are Just Kids Who Never Stopped Asking Why Men's Hoodie Sweat Shirt Small thru 4XL Astronomers Are Just Kids Who Never Stopped Asking Why Men's Hoodie Sweat Shirt Small thru 4XL

 

Description

Front hand warmer pocket. Please refer to our sizing chart for measurements.This design also available as a men's or women's tee shirt and sweat shirt in our other amazon.com listings.

How to Make a Telescope ( Second English Edition) How to Make a Telescope ( Second English Edition)

 

Description

The first edition of this book was universally acclaimed as the best book ever written for making a Newtonian telescope. This 2nd Edition is almost three times larger and adds to the original text new chapters on making a Cassegrainian telescope, optical windows, and equatorial mounts...

Newtonian Notes: Designing and Building a High Performance Telescope from Commercial Components Newtonian Notes: Designing and Building a High Performance Telescope from Commercial Components

 

Description

Self-published by the author, stapled binding, simply-printed booklet with a typewriter typeface, illustrated with b/w photographs and drawings. According to the author, Newtonian telescopes can be assembled with mismatched components and still work well enough to show views of the sky...

Orion SpaceProbe 3 Altazimuth Reflector Telescope Orion SpaceProbe 3 Altazimuth Reflector Telescope

 

Description

If you're looking for an affordable entry-level telescope for that beginning astronomy enthusiast, our SpaceProbe 3 Altaz is the perfect choice. Great for all-around stargazing, this highly portable, uncomplicated scope is just the right size and weight for the entire family, and just the right price for parents...

Orion SpaceProbe 130 EQ Reflector Orion SpaceProbe 130 EQ Reflector

List Price: $249.99

 

Description

Ships to the U.S. including Alaska, Hawaii, and Puerto Rico. Orion SpaceProbe 130 EQ Reflector Telescope An affordable but very capable telescope130mm aperture and 900mm focal length for great all-around viewing performanceIncludes sturdy tripod and equatorial mount for hands-free celestial trackingIncludes two eyepieces, finder scope, focuser, collimation cap, and FREE Starry Night astronomy softOne-year limited warranty A lot of folks shopping for their first telescope tell us that they have always had a fascination with the stars...

Orion StarBlast 4.5 Astro Telescope Orion StarBlast 4.5 Astro Telescope

List Price: $199.99

 

Description

Orion StarBlast 4.5 Astro Reflector TelescopeLaunch a lifetime of stargazing with this compact, ready-to-use telescopeTop-notch optics show you the moon, the planets, the stars and moreScope comes fully assembled so you can go from box to backyard in minutesHigh-quality optics, point-and-view ease of use, remarkable portability, all for less than $200Your ticket to space-tourism without the zero-G nauseaMaybe it's because many of us started out with those frustrating little department store refractors, but at Orion we strive to offer quality telescopes for beginners that are easy to use and will inspire their natural inclination to explore...

CARSON RP-300 REDPLANET 45-100 X 114MM NEWTONIAN REFLECTOR TELESCOPE CARSON RP-300 REDPLANET 45-100 X 114MM NEWTONIAN REFLECTOR TELESCOPE

 

Description

CARSON RP-300 REDPLANETAPERTURE 114MM (4.5") 45X - 100X MAGNIFICATION; FOCAL LENGTH 900MM (35.4"); 6 X 30MM FINDER SCOPE; K20MM & K9MM EYEPIECES; EQUATORIAL MOUNT WITH STURDY ALUMINUM TRIPOD

CARSON RP-100 REDPLANET 35-88 X 76MM NEWTONIAN REFLECTOR TELESCOPE CARSON RP-100 REDPLANET 35-88 X 76MM NEWTONIAN REFLECTOR TELESCOPE

 

Description

CARSON RP-100 REDPLANETAPERTURE 76MM (3") 35X - 87.5X MAGNIFICATION; FOCAL LENGTH 700MM (27.6"); 10 X 30MM ERECTING FINDER SCOPE; H20MM & H8MM ERECTING EYEPIECES; U-MOUNT WITH STURDY ALUMINUM TRIPOD

New - CARSON RP-100 REDPLANETTM 35-88 X 76MM NEWTONIAN REFLECTOR TELESCOPE New - CARSON RP-100 REDPLANETTM 35-88 X 76MM NEWTONIAN REFLECTOR TELESCOPE

 

Description

APERTURE 76MM (3") 35X - 87.5X MAGNIFICATION; FOCAL LENGTH 700MM (27.6"); 10 X 30MM ERECTING FINDER SCOPE; H20MM & H8MM ERECTING EYEPIECES; U-MOUNT WITH STURDY ALUMINUM TRIPOD

New White 6 New White 6" Newtonian Reflector Telescope w Tripod Paypal US $252.99 2d 1m
WHITE  6 WHITE 6" NEWTONIAN REFLECTOR TELESCOPE TRIPOD NEW Paypal US $217.88 2d 9h 5m
WHITE  6 WHITE 6" NEWTONIAN REFLECTOR TELESCOPE TRIPOD NEW FREE Paypal US $217.88 5h 51m
Meade 5 Meade 5" newtonian Reflector telescope dust cap DS-2130 Paypal 0 Bid US $1.95 1d 14h 4m
Meade 4.5 Meade 4.5" newtonian Reflector telescope dust cap Paypal 0 Bid US $1.95 1d 15h 37m
Meade newtonian Reflector dust cap for 114mm or 4.5 Meade newtonian Reflector dust cap for 114mm or 4.5" mirror diameter telescopes Paypal US $2.95 24d 7h 57m
Phenix D150F750 Newtonian Reflector telescope set Phenix D150F750 Newtonian Reflector telescope set Paypal US $260.80 27d 5h 20m
Phenix D114F900 Newtonian Reflector telescope set Phenix D114F900 Newtonian Reflector telescope set Paypal US $173.86 27d 5h 20m
Meade 114mm Telescope Newtonian Reflector Dust Cap NEW! Meade 114mm Telescope Newtonian Reflector Dust Cap NEW! Paypal US $1.00 2d 9h 41m
Vintage Criterion Telescope Brass Spider  Parts & mirror for Newtonian Reflector Vintage Criterion Telescope Brass Spider Parts & mirror for Newtonian Reflector Paypal 2 Bids US $20.50 6d 5h 59m
Magnacraft 76 x 900 Equatorial Newtonian Reflector Telescope 5 Power $411.95 Magnacraft 76 x 900 Equatorial Newtonian Reflector Telescope 5 Power $411.95 Paypal US $133.29 13d 11h 52m
Vintage Criterion Telescope Focuser ,   Kellner Eyepiece for Newtonian Reflector Vintage Criterion Telescope Focuser , Kellner Eyepiece for Newtonian Reflector Paypal 0 Bid US $40.00 6d 6h 20m
Carson Red Planet 45-100x114mm Newtonian Reflector Telescope  RP-300 Carson Red Planet 45-100x114mm Newtonian Reflector Telescope RP-300 Paypal US $194.99 28d 16h 57m
76 x 900 Telescope Features Equatorial Newtonian Reflector with Tripod 76 x 900 Telescope Features Equatorial Newtonian Reflector with Tripod Paypal US $132.49 28d 13h 29m
Carson Red Planet 35-88x76mm Newtonian Reflector Telescope  RP-100 Carson Red Planet 35-88x76mm Newtonian Reflector Telescope RP-100 Paypal US $104.99 27d 7h 6m
CARSON  RP100  RED PLANET NEWTONIAN REFLECTOR TELESCOPE CARSON RP100 RED PLANET NEWTONIAN REFLECTOR TELESCOPE Paypal US $122.98 26d 18h 14m
Vintage Criterion Dynascope Newtonian - Equatorial Mount - Reflector Telescope Vintage Criterion Dynascope Newtonian - Equatorial Mount - Reflector Telescope Paypal 0 Bid US $225.00 6d 9h 32m
Carson - RP-300 Redplanet 45100 x 114mm Newtonian Reflector Telescope Carson - RP-300 Redplanet 45100 x 114mm Newtonian Reflector Telescope Paypal US $217.58 25d 14h 19m
Carson RedPlanet RP-100 35-88 x 76 mm Newtonian Reflector Telescope Carson RedPlanet RP-100 35-88 x 76 mm Newtonian Reflector Telescope Paypal US $127.10 25d 2h 23m
iOptron EQ 2 GEM w/ Newtonian N114 Reflector Telescope iOptron EQ 2 GEM w/ Newtonian N114 Reflector Telescope Paypal US $152.15 22d 18h 41m
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Newtonian Reflector Telescope
Newtonian Reflector Telescope
Which deep sky objects (messier) will be easiest to see through my telescope?


I have a 4 inch newtonian reflector. Some of the messier objects like m57 are not capable of being seen with this one. Can anyone tell me the brighter and easier ones to see? (besides m42). :)
Objects, meaning galaxies, nebulae, and clusters. Thank you!

Most of the globulars are visible even in binoculars. In my 4.5 inch reflector, with suburban levels of light pollution, I can routinely spot the following:

M2, M3, M5, M10, M12, M13, M14, M17, M22, M27, M31, M35, M37, M42, M44, M45 (obviously), M53, and M57. Many others should be possible, but I generally save those for larger scopes (galaxies), or binocular viewing (open clusters).

New White 6 New White 6" Newtonian Reflector Telescope w Tripod Paypal US $252.99 2d 1m
WHITE  6 WHITE 6" NEWTONIAN REFLECTOR TELESCOPE TRIPOD NEW Paypal US $217.88 2d 9h 5m
WHITE  6 WHITE 6" NEWTONIAN REFLECTOR TELESCOPE TRIPOD NEW FREE Paypal US $217.88 5h 51m
Meade 5 Meade 5" newtonian Reflector telescope dust cap DS-2130 Paypal 0 Bid US $1.95 1d 14h 4m
Meade 4.5 Meade 4.5" newtonian Reflector telescope dust cap Paypal 0 Bid US $1.95 1d 15h 37m
Meade newtonian Reflector dust cap for 114mm or 4.5 Meade newtonian Reflector dust cap for 114mm or 4.5" mirror diameter telescopes Paypal US $2.95 24d 7h 57m
Phenix D150F750 Newtonian Reflector telescope set Phenix D150F750 Newtonian Reflector telescope set Paypal US $260.80 27d 5h 20m
Phenix D114F900 Newtonian Reflector telescope set Phenix D114F900 Newtonian Reflector telescope set Paypal US $173.86 27d 5h 20m
Meade 114mm Telescope Newtonian Reflector Dust Cap NEW! Meade 114mm Telescope Newtonian Reflector Dust Cap NEW! Paypal US $1.00 2d 9h 41m
Vintage Criterion Telescope Brass Spider  Parts & mirror for Newtonian Reflector Vintage Criterion Telescope Brass Spider Parts & mirror for Newtonian Reflector Paypal 2 Bids US $20.50 6d 5h 59m
Magnacraft 76 x 900 Equatorial Newtonian Reflector Telescope 5 Power $411.95 Magnacraft 76 x 900 Equatorial Newtonian Reflector Telescope 5 Power $411.95 Paypal US $133.29 13d 11h 52m
Vintage Criterion Telescope Focuser ,   Kellner Eyepiece for Newtonian Reflector Vintage Criterion Telescope Focuser , Kellner Eyepiece for Newtonian Reflector Paypal 0 Bid US $40.00 6d 6h 20m
Carson Red Planet 45-100x114mm Newtonian Reflector Telescope  RP-300 Carson Red Planet 45-100x114mm Newtonian Reflector Telescope RP-300 Paypal US $194.99 28d 16h 57m
76 x 900 Telescope Features Equatorial Newtonian Reflector with Tripod 76 x 900 Telescope Features Equatorial Newtonian Reflector with Tripod Paypal US $132.49 28d 13h 29m
Carson Red Planet 35-88x76mm Newtonian Reflector Telescope  RP-100 Carson Red Planet 35-88x76mm Newtonian Reflector Telescope RP-100 Paypal US $104.99 27d 7h 6m
CARSON  RP100  RED PLANET NEWTONIAN REFLECTOR TELESCOPE CARSON RP100 RED PLANET NEWTONIAN REFLECTOR TELESCOPE Paypal US $122.98 26d 18h 14m
Vintage Criterion Dynascope Newtonian - Equatorial Mount - Reflector Telescope Vintage Criterion Dynascope Newtonian - Equatorial Mount - Reflector Telescope Paypal 0 Bid US $225.00 6d 9h 32m
Carson - RP-300 Redplanet 45100 x 114mm Newtonian Reflector Telescope Carson - RP-300 Redplanet 45100 x 114mm Newtonian Reflector Telescope Paypal US $217.58 25d 14h 19m
Carson RedPlanet RP-100 35-88 x 76 mm Newtonian Reflector Telescope Carson RedPlanet RP-100 35-88 x 76 mm Newtonian Reflector Telescope Paypal US $127.10 25d 2h 23m
iOptron EQ 2 GEM w/ Newtonian N114 Reflector Telescope iOptron EQ 2 GEM w/ Newtonian N114 Reflector Telescope Paypal US $152.15 22d 18h 41m
TeleGizmos Telescope Cover For 10 TeleGizmos Telescope Cover For 10" Newtonian Reflector on Gem EQ Mounts Paypal US $169.00 19d 15h 20m
TeleGizmos Telescope Cover For 8 TeleGizmos Telescope Cover For 8" Newtonian Reflector on Gem EQ Mounts Paypal US $149.00 19d 15h 19m
Phenix D150F1400 Catadioptric Newtonian Reflector telescope set Phenix D150F1400 Catadioptric Newtonian Reflector telescope set Paypal US $260.80 15d 5h 6m
CARSON RP-100 REDPLANET 35-88 X 76MM NEWTONIAN REFLECTOR TELESCOPE CARSON RP-100 REDPLANET 35-88 X 76MM NEWTONIAN REFLECTOR TELESCOPE Paypal US $110.11 14d 14h 12m
CARSON RP-300 REDPLANET 45-100 X 114MM NEWTONIAN REFLECTOR TELESCOPE CARSON RP-300 REDPLANET 45-100 X 114MM NEWTONIAN REFLECTOR TELESCOPE Paypal US $215.23 14d 14h 12m
Celestron SkyProdigy 130mm Newtonian Reflector Telescope #31153 Celestron SkyProdigy 130mm Newtonian Reflector Telescope #31153 Paypal US $699.00 12d 8h 6m
TeleGizmos Telescope Cover for 10 TeleGizmos Telescope Cover for 10" & 12" F/5 Newtonian Reflector on MED-LRG Gem Paypal US $59.00 11d 13h 56m
NEW 76x900 Telescope.Equatorial Newtonian Reflector.Slow Motion Control.Barlow NEW 76x900 Telescope.Equatorial Newtonian Reflector.Slow Motion Control.Barlow Paypal US $139.99 9d 17h 22m
CARSON RP-300 RedPlanet 45–100 x 114mm Newtonian Reflector Telescope CARSON RP-300 RedPlanet 45–100 x 114mm Newtonian Reflector Telescope Paypal US $234.60 8d 7h 41m
NEW MAGNACRAFT® 76x900, NEWTONIAN REFLECTOR TELESCOPE, MSRP $398 NEW MAGNACRAFT® 76x900, NEWTONIAN REFLECTOR TELESCOPE, MSRP $398 Paypal US $138.95 5d 10h 21m
WHITE 6 WHITE 6" NEWTONIAN REFLECTOR TELESCOPE TRIPOD NEW FREE Paypal US $217.88 5d 8h 45m
CARSON RP-100 RedPlanet 35–88 x 76mm Newtonian Reflector Telescope CARSON RP-100 RedPlanet 35–88 x 76mm Newtonian Reflector Telescope Paypal US $132.04 4d 8h 7m
TELESCOPE CARSON RedPlanet™ 45–100 x 114mm Newtonian Reflector #RP-300 TELESCOPE CARSON RedPlanet™ 45–100 x 114mm Newtonian Reflector #RP-300 Paypal US $163.00 3d 1h 35m
TELESCOPE CARSON  REDPLANET 35-88 X 76MM NEWTONIAN REFLECTOR #RP-100 TELESCOPE CARSON REDPLANET 35-88 X 76MM NEWTONIAN REFLECTOR #RP-100 Paypal US $85.00 3d 1h 35m
Vixen R130Sf 130mm f/5 Newtonian Reflector Telescope Vixen R130Sf 130mm f/5 Newtonian Reflector Telescope Paypal US $229.00 1d 17h 31m
Carson Rp-300 Redplanet(TM) 45-100 X 114Mm Newtonian Reflector Telescope Carson Rp-300 Redplanet(TM) 45-100 X 114Mm Newtonian Reflector Telescope Paypal US $226.78 19d 20h 37m
Carson Rp-100 Redplanet(TM) 35-88 X 76Mm Newtonian Reflector Telescope Carson Rp-100 Redplanet(TM) 35-88 X 76Mm Newtonian Reflector Telescope Paypal US $120.54 19d 20h 37m
Celestron AstroMaster LT 76AZ 76mm (2.99 Celestron AstroMaster LT 76AZ 76mm (2.99"") Newtonian Reflector Telescope Paypal US $129.00 13d 1h 9m
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7ft Newtonian (reflector) telescope Photo Mugs 7ft Newtonian (reflector) telescope Photo Mugs

 

Description

William Herschel made and sold many telescopes of this type. He used his own 7ft telescope (which would have been very similar to this one) with a 6.2 inch aperture magnifying images 227 times (depending on the eyepiece used), to make his second review of the heavens in 1781 from his house in New Kings Street, Bath...

Newton's Reflecting Telescope Kit Newton's Reflecting Telescope Kit

 

Description

A real working replica of Newton's reflecting telescope, with 10x magnification. Looks great and includes its own base.
Instructions in Japanese, but very detailed pictured steps, easy to build!

CARSON RP-300 REDPLANET 45-100 X 114MM NEWTONIAN REFLECTOR TELESCOPE CARSON RP-300 REDPLANET 45-100 X 114MM NEWTONIAN REFLECTOR TELESCOPE

 

Description

CARSON RP-300 REDPLANETAPERTURE 114MM (4.5") 45X - 100X MAGNIFICATION; FOCAL LENGTH 900MM (35.4"); 6 X 30MM FINDER SCOPE; K20MM & K9MM EYEPIECES; EQUATORIAL MOUNT WITH STURDY ALUMINUM TRIPOD

CARSON RP-100 REDPLANET 35-88 X 76MM NEWTONIAN REFLECTOR TELESCOPE CARSON RP-100 REDPLANET 35-88 X 76MM NEWTONIAN REFLECTOR TELESCOPE

 

Description

CARSON RP-100 REDPLANETAPERTURE 76MM (3") 35X - 87.5X MAGNIFICATION; FOCAL LENGTH 700MM (27.6"); 10 X 30MM ERECTING FINDER SCOPE; H20MM & H8MM ERECTING EYEPIECES; U-MOUNT WITH STURDY ALUMINUM TRIPOD

New - CARSON RP-100 REDPLANETTM 35-88 X 76MM NEWTONIAN REFLECTOR TELESCOPE New - CARSON RP-100 REDPLANETTM 35-88 X 76MM NEWTONIAN REFLECTOR TELESCOPE

 

Description

APERTURE 76MM (3") 35X - 87.5X MAGNIFICATION; FOCAL LENGTH 700MM (27.6"); 10 X 30MM ERECTING FINDER SCOPE; H20MM & H8MM ERECTING EYEPIECES; U-MOUNT WITH STURDY ALUMINUM TRIPOD

Celestron 93625 Universal 1.25-inch Camera T-Adapter Celestron 93625 Universal 1.25-inch Camera T-Adapter

List Price: $30.95

 

Description

Celestron Telescope Astrophotography T-Adapter - 1-1/4in Universal 93625

Celestron 21024 FirstScope Telescope Celestron 21024 FirstScope Telescope

List Price: $73.95

 

Description

In 1609, world-renowned Italian scientist, Galileo Galilei, introduced an elementary telescope to the growing astronomy community, which sparked interest into the mysterious night sky for centuries to come...

Celestron 127EQ PowerSeeker Telescope Celestron 127EQ PowerSeeker Telescope

List Price: $225.95

 

Description

CES1071 Features: -Telescope. -PowerSeeker collection. -Color: Black. -Material: Aluminum. -127 mm (5'') Newtonian reflector. -3x Barlow lens triples the magnifying power of each eyepiece. -Quick and easy no-tool setup...

Orion SpaceProbe 3 Altazimuth Reflector Telescope Orion SpaceProbe 3 Altazimuth Reflector Telescope

 

Description

Orion's surprising little Spaceprobe 3 has been picked by independent reviewers as one of the best telescopes in its price class. Unlike similar telescopes seen in discount stores, Orion has refined the Spaceprobe 3 by paying attention to the little details, and that make this telescope a great value...

Orion SpaceProbe 130 EQ Reflector Orion SpaceProbe 130 EQ Reflector

List Price: $249.99

 

Description

Ships to the U.S. including Alaska, Hawaii, and Puerto Rico. Orion SpaceProbe 130 EQ Reflector Telescope An affordable but very capable telescope130mm aperture and 900mm focal length for great all-around viewing performanceIncludes sturdy tripod and equatorial mount for hands-free celestial trackingIncludes two eyepieces, finder scope, focuser, collimation cap, and FREE Starry Night astronomy softOne-year limited warranty A lot of folks shopping for their first telescope tell us that they have always had a fascination with the stars...

Orion StarBlast 4.5 Astro Telescope Orion StarBlast 4.5 Astro Telescope

List Price: $199.99

 

Description

Orion StarBlast 4.5 Astro Reflector TelescopeLaunch a lifetime of stargazing with this compact, ready-to-use telescopeTop-notch optics show you the moon, the planets, the stars and moreScope comes fully assembled so you can go from box to backyard in minutesHigh-quality optics, point-and-view ease of use, remarkable portability, all for less than $200Your ticket to space-tourism without the zero-G nauseaMaybe it's because many of us started out with those frustrating little department store refractors, but at Orion we strive to offer quality telescopes for beginners that are easy to use and will inspire their natural inclination to explore...

Black 6 Black 6" Newtonian Reflector Telescope 1400

List Price: $649.95

 

Description

BRAND NEW SHORT TUBE NEWTONIAN EQUATORIAL REFLECTOR TELESCOPE Diameter=150mm (6") - Focal point=750mm (30") and 1400mm (55") Full Coating = al+sio Clear aperture 6inches = 150mm Focal length 29.38inches = 750mm Focal ratio f/5 Mirror thickness 0...

A four inch newtonian reflector...?


Has a focal ratio of 400mm. I have good skies for observing, only one problem, a streelight which is in the way. The only way I can completely escape it is to go behind my house but then I am limited to only a part of the sky. But many stars are still seen. I live in a sub-urban town, pretty far from the city. Anyway, I am deciding on an Eyepiece, either 5mm or 6mm (80x) (65x). Which would you recommend? The magnification of this telescope is more than 200x, but I think even less than mag and the image will be blurry.

I would go for the 5mm with a wide field like the Orion Stratus..68 deg.field of view and 20mm eye relief.

http://www.telescope.com/control/accessories/telescope-eyepieces/orion-stratus-wide-field-telescope-eyepieces

Wally

TELESCOPE With TRIPOD - Powerful 60 mm Aperture Lens - Focal Length 800 mm f/13 TELESCOPE With TRIPOD - Powerful 60 mm Aperture Lens - Focal Length 800 mm f/13 Paypal US $105.94 6d 19h 42m
Celestron New Lightweight & Portable FirstScope Telescope with 76mm aperture Celestron New Lightweight & Portable FirstScope Telescope with 76mm aperture Paypal US $74.69 3d 2h 17m
Vintage Finder Telescope 45mm Aperture Vintage Finder Telescope 45mm Aperture Paypal 2 Bids US $7.00 1d 16h 42m
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Telescopes Aperture
Telescopes Aperture
What serie of telescopes is better: the Astromaster or Powerseeker?


Both look similar en size, aperture and price...

The Astromaster series is slightly better, being a small step above the department store junk scope; the Powerseeker series is pure junk: undersized telescopes on really shaky mounts. I wouldn't recommend either, now that Orion is offering somewhat better beginner scopes like the FunScope, SkyScanner, GoScope and StarBlast.

Orion FunScope 76mm reflector @ $50:

http://www.telescope.com/control/product/~product_id=09766/~pcategory=telescopes/~category_id=countdown

Orion GoScope 80mm refractor @ $100:

http://www.telescope.com/control/telescopes/refractor-telescopes/orion-goscope-80mm-tabletop-refractor-telescope

Orion SkyScanner 100mm reflector @ $100:

http://www.telescope.com/control/telescopes/dobsonian-telescopes/orion-skyscanner-100mm-tabletop-reflector-telescope

Orion StarBlast 4.5-inch reflector @ $200:

http://www.telescope.com/control/product/~product_id=09814/~pcategory=telescopes/~category_id=dobsonians

What makes all of these scopes stand out is their smooth solid Dobsonian-style mounts, as distinct from the wobbly tripod mounts on the competition. In this price range, slight differences in price make for major differences in quality, so concentrate on items towards the bottom of the list.

For just slightly more money you can get a 6-inch reflector on a true Dobsonian mount.

Here are a few web pages with good information on beginner's telescopes:

http://www.gaherty.ca/tme/TME0702_Buying_a_Telescope.pdf

http://www.scopereviews.com/begin.html

http://observers.org/beginner/j.r.f.beginner.html

For more advanced information, read Phil Harrington's Star Ware, 4th edition (Wiley).

You'll get the greatest value for your money with a Newtonian reflector on a Dobsonian mount, such as these:

http://www.telescope.com/control/category/~category_id=dobsonians/~pcategory=telescopes/~VIEW_INDEX=0/~VIEW_SIZE=1000000

http://www.skywatchertelescope.net/swtinc/product.php?class1=1&class2=106

Buy from a store which specializes in telescopes and astronomy, either locally or online; don't buy from department stores, discount stores or eBay as mostly what they sell is junk. Find your local astronomy club and try out different telescopes at one of their star parties:

http://www.skyandtelescope.com/community/organizations

I strongly recommend that beginners steer clear of astrophotography until they have learned their way around the sky. Astrophotography is by far the most expensive and difficult area of amateur astronomy.

Many people who buy telescopes have no idea how to find interesting things to observe. A good introduction to finding things is NightWatch by Terence Dickinson (Firefly). A more advanced book is Star Watch by Phil Harrington (Wiley).

TELESCOPE With TRIPOD - Powerful 60 mm Aperture Lens - Focal Length 800 mm f/13 TELESCOPE With TRIPOD - Powerful 60 mm Aperture Lens - Focal Length 800 mm f/13 Paypal US $105.94 6d 19h 42m
Celestron New Lightweight & Portable FirstScope Telescope with 76mm aperture Celestron New Lightweight & Portable FirstScope Telescope with 76mm aperture Paypal US $74.69 3d 2h 17m
Vintage Finder Telescope 45mm Aperture Vintage Finder Telescope 45mm Aperture Paypal 2 Bids US $7.00 1d 16h 42m
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Hanbury Brown radio telescope at sunset, Australia Photo Mugs Hanbury Brown radio telescope at sunset, Australia Photo Mugs

 

Description

Radio telescope. The Hanbury Brown radiointerfer- ometer near Narrabri, Australia, atsunset. The Hanbury Brown interferometer consistsof six 22 metre diameter radio telescopes that arecombined by a technique called aperture synthesisto simulate a giant telescope with a diameter ofup to 6km...

Celestron SkyMaster Giant 15x70 Binoculars with Tripod Adapter Celestron SkyMaster Giant 15x70 Binoculars with Tripod Adapter

List Price: $119.95

 

Description

Binoculars come in a wide range of shapes and sizes these days, and an even wider range of prices. It's easy to spend less than $100 or more than $500 for what may appear to be, at least outwardly, comparable models...

Aputure Timer Camera Remote Control Shutter Cable 1C for Canon EOS Rebel XT, XTi, XSi, XS, T1i, T2i, EOS 60D, 1000D, 550D, 500D, 450D, 400D, 350D, 300D, Canon Powershot G10, G11, G12 Fully Compatible with Canon RS 60-E3, Inexpensive Intervalometer for Time Lapse Aputure Timer Camera Remote Control Shutter Cable 1C for Canon EOS Rebel XT, XTi, XSi, XS, T1i, T2i, EOS 60D, 1000D, 550D, 500D, 450D, 400D, 350D, 300D, Canon Powershot G10, G11, G12 Fully Compatible with Canon RS 60-E3, Inexpensive Intervalometer for Time Lapse

List Price: $99.95

 

Description

Premium Grade Shutter Cable Release, same function as Original.Auto-focusing, Single Shot, Continous, and Bulb.16" Cord. Original Manufacture Packaging. 24 Month Manufacture Warranty.

Fotodiox PRO Lens Mount Adapter - Canon FD, New FD, FL Lens to Canon EOS Camera Adapter, for Canon EOS 1d, 1ds, 1ds Mark II, III, IV 5D, 5D Mark II, 7D, 10D, 20D, 30D, 40D, 50D, 60D, Rebel xt, xti, xs, xsi, t1i, t2i,t3,t3i,300D, 350D, 400D, 450D, 500D, 550D,600D,1100D,1000D Fotodiox PRO Lens Mount Adapter - Canon FD, New FD, FL Lens to Canon EOS Camera Adapter, for Canon EOS 1d, 1ds, 1ds Mark II, III, IV 5D, 5D Mark II, 7D, 10D, 20D, 30D, 40D, 50D, 60D, Rebel xt, xti, xs, xsi, t1i, t2i,t3,t3i,300D, 350D, 400D, 450D, 500D, 550D,600D,1100D,1000D

List Price: $79.95

 

Description

If you have a SLR or DSLR camera and other maker/mount lenses, the Fotodiox Mount Adapters allow you to use your lenses on the film/digital camera body. Sharing lenses has some distinct advantages. Certain prime lens just can't be replaced, and you save cost of purchase lenses...

Orion SpaceProbe 3 Altazimuth Reflector Telescope Orion SpaceProbe 3 Altazimuth Reflector Telescope

 

Description

If you're looking for an affordable entry-level telescope for that beginning astronomy enthusiast, our SpaceProbe 3 Altaz is the perfect choice. Great for all-around stargazing, this highly portable, uncomplicated scope is just the right size and weight for the entire family, and just the right price for parents...

Orion Observer 70mm Altazimuth Refractor Telescope Orion Observer 70mm Altazimuth Refractor Telescope

List Price: $129.99

 

Description

Our Observer 70 is the perfect telescope for that budding astronomer in your family. This scope excels in both quality and performance. Its 70mm multi-coated achromatic objective lens - focal length 700mm focal length (f/10) - gathers 36% more light than a 60mm...

Orion Observer 70mm Equatorial Refractor Telescope Orion Observer 70mm Equatorial Refractor Telescope

List Price: $149.99

 

Description

This tried-and-true refractor goes the extra distance in introducing the novice to the wonders of the night sky. The Observer 70 features a 70mm fully anti-reflection coated achromatic objective lens, which provides 36% more light-gathering ability than a 60mm...

The Dobsonian Telescope: A Practical Manual for Building Large Aperture Telescopes The Dobsonian Telescope: A Practical Manual for Building Large Aperture Telescopes

 

Description

This book tells how you can build a state-of-the-art Dobsonian telescope using readily available materials and supplies. Every step of construction is detailedin photographs and diagrams, and the underlying ideas are carefully explained...

Astronomy with Small Telescopes: Up to 5-inch, 125 mm (Patrick Moore's Practical Astronomy Series) Astronomy with Small Telescopes: Up to 5-inch, 125 mm (Patrick Moore's Practical Astronomy Series)

List Price: $49.95

 

Description

Small telescopes, whether simple beginners' telescopes or refined computer-controlled instruments, are gaining popularity fast as technology improves and public interest increases. In this book the author has brought together the experience of small telescope users to provide an insightful look into just what is possible...

On the construction of a silvered glass telescope, fifteen and a half inches in aperture, and its use in celestial photography On the construction of a silvered glass telescope, fifteen and a half inches in aperture, and its use in celestial photography

List Price: $17.75

 

Description

This is a reproduction of a book published before 1923. This book may have occasional imperfections such as missing or blurred pages, poor pictures, errant marks, etc. that were either part of the original artifact, or were introduced by the scanning process...

Celestron SkyMaster 20x80 Binoculars Celestron SkyMaster 20x80 Binoculars

List Price: $204.95

 

Description

Celestron 20x80 SkyMaster Giant Astronomy Porro BaK-4 Binoculars w/ Case 71018

CELESTRON Powerseeker 50 Refractor Telescope CELESTRON Powerseeker 50 Refractor Telescope

List Price: $58.95

 

Description

Celestron PowerSeeker 50 Astronomical Telescope 21039

HELP! someone please explain(preferably in detail)how aperture in a telescope affects brightness of the image?


school case study on telescopes, 10 points for best answer
thanks, and what happenes when the light is in the telescope?

It's quite simple in that the larger the aperture the more light is let into the telescope.
And the more light into the scope the more illumination is available for a brighter image

You see, the basic function of the aperture is to control the
amount of light that is let into the telescope.