Telescopes Reflector Telescope
Telescopes Reflector Telescope
What is the difference between a refractor and a reflector telescope?
My son wants a telescope for Christmas, but we're pretty ignorant as to what kind to get. He has 10 years, but extremely intelligent and interested. Do not want a piece of junk, but still want something enough good for the support of his interest. Advice?
I am a big fan of dobsonians (I have 2) but not good for young children! They are designed to be easy to move and children tend to cling to the "powerful and moving when it should be stationary. Not only that, but undriven Dobs are, what have to be moved by hand to follow the object you are viewing, I have yet to meet a 10 year old boy who can do that. You obviously can get mounts motorized to follow the object for you (plus shipping), but I found another problem with young people - some of them looking through the eyepiece, rather than through it! I am passionate about teaching astronomy to children, but I would be very sure they could actually use and enjoy a "scope before spending a lot of money at a time. But suppose that a telescope is right for your child. Reflectors give you more bang for the buck, but the eye will very high off the ground - perhaps too high. decent refractors are much more expensive, but the eye is below, and when used with a star are diagonal (which makes the eye in a more comfortable position) much more useful for short people. A third type of 'scope, reflectors, which use lenses and mirrors. There are some very affordable, but I think the sub $ 500 cases are too small to give pleasant views - no wow wow "." Whichever you choose, please remember to take practice to use, and will never see things like the Hubble images!
Telescope Basics (Reflector, Refractor, Schmidt-Cassegrain)
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7ft Newtonian (reflector) telescope Photo Mugs 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. It was during this review that he discovered the planet Uranus. Herschel was able ... |
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Newtons Small Reflector Photo Mugs Sir Isaac Newtons small Reflector .... |
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Site of the Twenty Feet Reflector at Feldhausen. Cape of Good Hope Sept Photo Mugs This print of the Herschels 20ft telescope at Feldhausen, Cape of Good Hope, was the frontispiece for John F. W. Herschels Results of Astronomical Observations Made During the Years 1834, 5, 6, 7, 8 At the Cape of Good Hope, published in 1847..... |
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Black 6 Newtonian Reflector Telescope 1400 $649.95 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 0.625inches = 16mm Thickness/diameter ratio 1:9.6 Surface Accuracy = 1/8. Using a barlow correcting lens, this almost doubles the 750 mm power, this makes i... |
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Carson Red Planet Series Newtonian Reflector Telescope - 35 - 87.5 X 76mm - RP-100RP-100 $89.00 Carson Red Planet Series Newtonian Reflector Telescope - 35 - 87.5 X 76mm... |
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BUSHNELL 789946 VOYAGER(R) SKY TOUR(TM) 900MM X 4.5 REFLECTOR TELESCOPE $286.17 900MM X 4.5" REFLECTOR TELESCOPE; LCD HANDSET; ILLUMINATED SMART MOUNT; LED RED DOT FINDERSCOPE FOR FAST POSITIONING ; STURDY PREASSEMBLED CONSTRUCTION; FULLY ADJUSTABLE, QUICK-RELEASE TRIPOD; THREE 1.25" EYEPIECES (4MM, 8MM & 12.5MM)... |
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TASCO 49114500 SPACESTATION 114MM REFLECTOR ST TELESCOPE $154.20 TASCO 49114500 SPACESTATION 114MM REFLECTOR ST TELESCOPE114X MAGNIFICATION; FOCAL RATIO: F/4.4 ; OBJECTIVE LENS DIA: 500MM ; EYEPIECE: 25MM (20X), 10MM (50X), 4MM (125X) ; SINGLE FORK ARM ALTAZIMUTH MOUNT ;... |
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BUSHNELL 789931 VOYAGER(R) SKY TOUR(TM) 700MM X 3 REFLECTOR TELESCOPE $222.57 700MM X 3" REFLECTOR TELESCOPE; LCD HANDSET; ILLUMINATED SMART MOUNT; LED RED DOT FINDERSCOPE FOR FAST POSITIONING; STURDY PREASSEMBLED CONSTRUCTION; FULLY ADJUSTABLE, QUICK-RELEASE TRIPOD; THREE 1.25" EYEPIECES (4MM, 8MM & 12.5MM)... |
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Orion SpaceProbe 3 Altazimuth Reflector Telescope $99.99 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. The Spaceprobe 3 comes with an unusually complete set of accessories. The package includes two ... |
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Orion Observer 70mm Altazimuth Refractor Telescope $139.99 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. And it's made of glass, not plastic, as you'd find in many department store models. The optical tube is supported on a sturdy aluminum tr... |
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Orion StarBlast 4.5 Astro Telescope $199.95 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... |
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Power Acoustik CCD-3 Night Vision Infrarred Color Camera $179.95 POWER ACOUSTIK CCD-3 BULLET STYLE COLOR CAMERA WITH NIGHT ILLUMINATION & DIN CONNECTION... |
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The Complete Guide to Building Your Own 8-inch Telescope $9.99 I've written a book on how to build a telescope just like the one I did so anyone can do it. Every step and every piece is covered in great detail so you can actually build a powerful telescope much more powerful than the one's typically found in department stores. The optics are larger with greater light-gathering power and resolution, enabling you to observe fainter stars, nebulae, and galaxies,... |
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Choosing and Using a Dobsonian Telescope (Patrick Moore's Practical Astronomy Series) $29.46 In the 1960's, American amateur astronomer, John Dobson, designed a revolutionary kind of astronomical telescope featuring a lightweight large-aperture reflecting system on a simple mounting, using the then-revolutionary material called teflon. The design combines simplicity and portability with large-aperture prowess. Thirty years later Dobsonians remain supreme for visually observing faint deep-... |
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Fun With Telescopes $1.99 Here's a list of the topics you'll find inside: Has The Night Sky Always Fascinated You Since You Were A Child? Do You Often Wonder What Lies Beyond The Dark Expanse Above? Do You Want To Fathom The Mysteries Of The Infinite Universe?Here's a list of the topics you'll find inside: - History Of Telescopes - The Evolution Of The Telescope - Historical Timeline For Telescopes- How Telescopes Work- Bu... |
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CELESTRON Powerseeker 50 Refractor Telescope $39.45 The Celestron® PowerSeeker 50 telescope is a great way to open up the wonders of the universe to the aspiring astronomer. It's portable yet powerful with ample optical performance to excite any newcomer to the world of amateur astronomy.... |
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BARSKA 40070 Starwatcher Compact Refractor Telescope with Table Top Tripod And Carrying Case $59.39 Barska 300x Starwatcher Refractor Telescope for aspiring astronomers... SAVINGS PRICED! Everything you need to get your start in astronomy! The Barska 300x Starwatcher Refractor Telescope is as powerful as it is easy to set up and includes everything necessary to begin the adventure of a lifetime including telescope, finderscope, eyepieces, mount and tripod. You also get the new beginner's version... |
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Bushnell Powerview 7-15x25 Compact Zoom Binocular $45.00 Bushnell PowerView 139755 Binocular 139755 Binoculars... |
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Celestron 21061 AstroMaster 70 AZ Refractor Telescope $99.99 TE3) Celestron astromaster 70AZ scope... |
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Celestron 21024 FirstScope Telescope $30.86 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. Four centuries later, in celebration of the International Year of Astronomy 2009, Celestron offers the portable FirstScope Telescope. The FirstScope pays tribute to Galileo Galilei and many of ... |
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