150mm telescope
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Vega 600 Telescope
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DescriptionInquisitive scientists young and old will enjoy investigating the universe through the precision optics of the Vega 600. With magnifications from 30x to 150x and rack and pinion focusing, stargazers and naturalists are rewarded with bright, clear images-perfect for scoping out birds and animals, as well as the moon, planets, and constellations. PLUS, lightweight, and easy to use! High-quality features and components include: 50mm achromatic objective lens, all-glass optics, two interchangeable eyepieces, optical finder scope, full-height, adjustable tripod, and image erector for viewing terrestrial subjects. Features
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What is considered a "good focal length" for a reflector telescope?
What is considered a good focal length of a telescope reflector type? Do you have any connection with the optical diameter (ie 114mm/4.5 ", 130 mm / 5", 150 mm / 6 ") Example: (OPDia 114mm/4.5 "- focalLength 500mm/20") versus (OPDia 130 mm / 5 "- focalLength 1000mm/39) versus (OPDia 150 mm / 6" - focalLength 1400mm/55) Eye on equal terms with the Moon and Orion's belt as a reference ... it would be better? (I hope this is a question best summary.) I have only used once a refractor telescope, but I think I am because of the update .... therefore, the desire for a reflector. No replys are intelligent for many, you can let the public in general, to decide the best.
Personally, I like a focal length of 60 inches. It is time for you can achieve high power views without Barlows resorting to eye and extremely short focal length, and is short enough that you can get decent wide field views without resorting to extremely long focal length eyepieces. Dobson A type field with one inch focal length-60 put the eye in my eye level when the scope outlined in the zenith for what ever I have to use a ladder to reach the eyepiece. In fact, I can see most of the sky while sitting.
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 Celestron Omni XLT 150mm Telescope Reflector 31057 SALE  US $518.95
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 Celestron Comet Catcher Telescope 6 F 4 Rich Field Scope 150mm US $95.00
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Star Ware: The Amateur Astronomer's Guide to Choosing, Buying, and Using Telescopes and Accessories
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DescriptionPraise for Star Ware"Star Ware is still a tour de force that any experienced amateur will find invaluable, and which hardware-minded beginners will thoroughly enjoy."- Robert Burnham, Sky & Telescope magazine"Star Ware condenses between two covers what would normally take a telescope buyer many months to accumulate."- John Shibley, Astronomy magazineWhether you're shopping for your first telescope or your fifth, don't be surprised if you feel overwhelmed by the dazzling array of product choices, bells and whistles, and the literature that describes them all. That's why you need Star Ware.In this revised and updated Fourth Edition of the essential guide to comparing and selecting sky-watching equipment, award-winning astronomy writer Philip Harrington takes you telescope shopping the easy way. He analyzes and explains today's astronomy market and compares brands and models point by point. Star Ware gives you the confidence you need to buy the telescope and accessories that are right for you and the knowledge to get the most out of your new purchase, with:*Extensive, expanded reviews of leading models and accessories-including dozens of new products*A clear, step-by-step guide to every aspect of selecting telescopes, binoculars, filters, mounts, lenses, cameras, film, star charts, guides and references, and much more*Ten new do-it-yourself projects for building your own astronomical equipment*Easy tips on setting up, using, and caring for telescopes and other astronomical equipment*Lists of where to find everything astronomical, including Web sites and resources; distributors, dealers, and conventions; and corporate listings for products and services |
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HT USE AN ASTRONOMICAL TELESCO
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DescriptionAstronomy has never been a more popular pastime than it is today. The increased availability of less expensive, more powerful, and more sophisticated telescopes has given rise to a new generation of stargazers. And for these beginning astronomers here is the comprehensive book covering everything from the difficult task of selecting an instrument to the equally daunting choices that arise when a telescope is turned to the heavens. Renowned British astronomer and author James Muirden takes the fledgling astronomer by the hand in his new book, offering tips on: * the purchase, assembly, and orientation of your new telescope * how to observe and chart the Sun, Moon, planets, stars and comets * how to investigate the deep-sky objects -- clusters, nebulae, and other galaxies beyond the Milky Way The final chapter, "Windows into Space," explores ten carefully selected regions featuring noteworthy examples of double stars, galaxies, and nebulae, as well as more obscure objects seldom examined by astronomers. How to Use an Astronomical Telescope offers completely revised and updated location charts with detailed coordinates, tables, appendixes, and numerous illustrations and photographs, making it the essential volume for one's first exploration of the cosmos. Features
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The Sun and How to Observe It (Astronomers' Observing Guides)
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DescriptionIn Part 1, the book describes the very latest thinking on solar physics in (mostly non-mathematical) detail, incorporating the latest results from research concerning the structure and behaviour of the Sun. There is particular emphasis on the surface features visible from the Earth, and how these are the result of the extraordinary processes that are taking place within the Sun. In Part 2, the book details the techniques for observing and imaging the Sun with commercially-available equipment. The many recent advances in optical equipment now allow amateur astronomers to observe phenomena that until recently could only be seen with the extremely expensive equipment available at universities and research observatories – notably H-alpha and Calcium-K telescopes. This is a completely up-to-date solar observing book, while providing the science background necessary for an understanding of the observations with the latest equipment. It also features the most complete solar observing and imaging guide available. Features
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Celestron 21064 AstroMaster 90 EQ Refractor Telescope
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DescriptionIf you're looking for a dual-purpose telescope appropriate for both terrestrial and celestial viewing, then the AstroMaster Series is for you. Each AstroMaster model is capable of giving correct views of land and sky. The AstroMaster Series produce bright, clear images of the Moon and planets. It is easy to see the moons of Jupiter and the rings of Saturn with every one of these fine instruments. For views of the brighter deep space objects like galaxies and nebulae, we recommend the larger aperture and light gathering ability of the Newtonian reflectors. Celestron’s Astromaster 90EQ refractor telescope is a good choice for anyone who wants to try out astronomy for an affordable price, and it can double as a long range spotting scope. Bigger and more impressive than it looks in pictures, the Astromaster 90 EQ is an adult size telescope that stands nearly five feet high and weighs almost 25 pounds. With it’s fully illustrated quick set up guide, the telescope is easy to assemble, and the package includes an erect image prism, high and low power eyepieces, and astronomy software for your PC. Refractors are known for their crisp, high contrast views of the Moon and planets and the Astromaster 90 delivers sharp views right out of the box. The low power 20mm eyepiece (50X magnification) nicely frames the moon, while the high power 10mm eyepiece (100X magnification) delivers a crisp close up image full of detail. The sharp Achromatic optics of the Astromaster 90 EQ give me memorable views night after night. On a moonless night I like the way the 20mm eyepiece frames the ghostly glow of the Orion Nebula. Zooming in with the 10mm eyepiece, I can easily pick out all four stars of the Orion Nebula’s embedded quadruple star the Trapezium. Another night I was treated to a nice view as one of Jupiter’s moons cast its shadow on Jupiter’s cloud tops. The Equatorial mount included with the Astromaster 90 EQ is designed to help track stars and planets at high power. When I set up the telescope, I simply point the polar axis at Polaris, the North Star. This makes it easy to keep celestial objects in the field of view by turning one slow motion knob. Celestron also offers the AstroMaster 90 EQ MD which includes a battery powered motor for automatic tracking. The CG-3 equatorial mount is a little wobbly when the legs are fully extended, but that’s normal for any large telescope in this price range. The built in “Star-Pointer” finder allows me to aim the telescope by aligning an illuminated red dot with the target. This works OK for bright objects like the Moon and planets, but it’s not so easy to use on fainter deep space objects. --Jeff Phillips Pros: Crisp clear views of the Moon and planets Rugged refractor design Easy no-tool set up Erect image prism and two eyepieces included Cons: Equatorial mount wobbles a bit while focusing Star pointer not so easy to use Jupiter showing the shadow of Ganymede, July 22, approx 400X. Double star Albireo in Cygnus, July 28, approx 200X The Moon as seen at 50X with Canon Powershot camera. The Moon as seen at 200X with Neximage camera Features
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Celestron Advanced Series C6 R-GT 354 x 150mm Telescope
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DescriptionCelestron C6 R-GT Advanced Computerized Refracting Telescope - 21020 Features
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Cstar 50x450mm FL Table-Top Refractor Telescope (TT-150)
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DescriptionThe Cstar TT-150 telescope features a 1.5x erect image lens, which allows it to be used like a Spotting Scope and Telescope All In 1 for observing both daytime landscapes and night sky objects! No up-side-down and reversed images! Several accessory lenses and eyepieces are included, great for experimentation by the beginning curious astronomer. Great for kids! Product features optical quality lenses, perfect for easy viewing by the beginner. A perfect educational product! Key Specifications: Objective/Aperture Size: 50mm, Focal Length: 450mm, Mount: Universal Camera Mount. Optical quality plastic lenses and a durable plastic tube. Accessories include: 10 inch metal tripod (No Assembly required and it comes with an easy to use universal camera mount that can also be used with other camera brands and spotting scope brands when not using the Cstar TT-150 telescope), 2 Eye-Pieces (H-20, SR-6), 1.5x Erect Image Lens (Allows user to use the product like a Spotting Scope and Telescope in 1), 2x Barlow Lens, .965 inch Diagonal Mirror (provides comfortable viewing of overhead night sky objects), table-top tripod tripod, and objective lens dust cover. Usable Magnification: H-20 = 22x, H-20 with 1.5x Erect Image Lens = 33x, H-20 with 2x Barlow Lens = 45x , SR-6 = 75x, SR-6 with 1.5x Erect Image Lens = 112x, SR-6 with 2x Barlow Lens = 150x. Features
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Orion FlexiShield for 150mm (6") Cassegrains
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DescriptionEvery owner of a Schmidt-Cassegrain or Maksutov telescope knows what a pain dew can be. When it forms on the front corrector plate or lens, it's usually time to call it a night. Our FlexiShield dew cap is the answer. It reduces the formation of dew, prolonging your observing sessions. It's made of durable, flexible ABS plastic that won't chip or break like hard dew caps. It wraps snugly around your telescope tube and fastens with Velcro. FlexiShield can be stored flat or rolled up for convenient storage and transport. It also makes an excellent lens shade when using your telescope in daylight. Features
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Celestron Omni XLT 150mm Telescope Newtonian Reflector 31057
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DescriptionCelestron Omni XLT 150mm Telescope Newtonian Reflector 31057 Features
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150mm Newtonian Reflector Apollo Telescope With Eq Metal Tripod
Sale Price: $300.00 |
Description150MM TELESCOPE WITH PLOSSL 25MM AND 10MM 1.25 EYEPIECE EQ TRIPOD. CHOCKING HAZARD - CONTAINS SMALL PARTS - NOT FOR CHILDREN UNDER 3 Features
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Celestron SkyMaster Giant 15x70 Binoculars with Tripod Adapter
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DescriptionCelestron and ;s SkyMaster Series of large aperture binoculars are a phenomenal value for high performance binoculars ideal for astronomical viewing or for terrestrial (land) use - especially over long distances. Each SkyMaster model features high quality BAK-4 prisms and multi-coated optics for enhanced contrast. Celestron has designed and engineered the larger SkyMaster models to meet the special demands of extended astronomical or terrestrial viewing sessions. The 15x70 version is one of the most popular models in the series. It offers serious large aperture light gathering in an affordable and reasonably lightweight configuration. 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. While they may look the same, they are probably quite different on the inside. Recently, the binocular market has seen a flood of giant binoculars at prices that were unheard of just a few years ago. In general, giant binoculars are defined as those that magnify the view 10 times or more and have 70-mm or larger front (objective) lenses. It used to be that the least expensive giant binoculars cost in excess of $150, even $200. All that changed not long ago, when the bottom fell out of the price cellar. Now, several companies import giant binoculars that sell for half that, or less. Celestron's 15x70 SkyMaster binoculars are one of the leaders in the low-price giant binocular arena. They certainly sound good on paper. The SkyMasters include multicoated optics and BaK-4 internal prisms, two features that promise brighter, better images, and key points to look for when judging a pair of binoculars. They also come with an adapter for attaching them to a photo tripod, which is a must to use them to their fullest, and a soft carrying case. But just because they are cheap doesn't always mean they are worth the price. Would it be better to save up for a more expensive pair? To find the answer, I had an opportunity recently to judge the SkyMasters against a pair of Fujinon 16x70 FMT-SX binoculars , one of the finest pairs of giant binoculars sold today. Like the SkyMasters, the Fujinons feature BaK-4 prisms, but also have fully multicoated optics. As a general rule, superior coatings mean superior image sharpness and contrast. But then, that should be expected, given that the Fujinons cost many times more than the Celestrons. While the Fujinons were clearly the better performer, the Celestron SkyMasters held up admirably. Image brightness, quality, and contrast were all remarkable considering their bargain price. Although images were a little soft across the outer 25% of the Celestron's field, the overall view was impressive nonetheless. Some inexpensive binoculars have very sloppy focusing, causing the eyepieces to tilt and shift. Not so with the SkyMasters. I found that their center-focusing mechanism worked smoothly, with no apparently backlash or wobble. Eye relief (the distance you hold your eyes away from the eyepieces to see the full field) is stated to be 18 mm, a good distance for higher power binoculars and an important consideration if you must wear glasses when viewing. The SkyMasters are also light enough to support by hand for short periods of time, although buyers would be well advised to mount them on a sturdy photo tripod. The bottom line is, if you are considering a pair of giant binoculars, whether for bird watching, stargazing, or another recreational use, and have a limited budget, Celestron's giant 15x70 SkyMasters represent an excellent value. --Phil Harrington, author of Star Ware and Star Watch Pros: Exceptional value for the price Light enough to support by hand BaK-4 prisms Multicoated optics Cons: Outer 25% of the field is soft and a little blurry Requires a tripod to use for extended periods Features
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