cassegrain telescope
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So You Want a Meade LX Telescope!: How to Select and Use the LX200 and Other High-End Models (Patrick Moore's Practical Astronomy Series)
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DescriptionThe Meade LX200 series of telescopes was introduced in 1992 and represented a giant step forward in technology for amateur astronomers - computer control. The LX200 series telescopes were an instant success and have outsold all other astronomical telescopes put together. Steady development has continued to the present day, and LX200s are available in a range of apertures from 8-inch through the giant 16-inch, which is widely installed in university astronomy departments and the smaller public observatories. For anyone considering buying a high-end Meade telescope, the book offers an experienced user's guide to what can actually be achieved with it. So You Want a Meade LX Telescope also provides detailed discussions about some of the many software packages available to aid optimizing and actually using the scope. The typical results are discussed so readers can know what to expect. Also reviewed are essential accessories such as CCD cameras and the latest Active Optics units. These extraordinary telescopes are capable of amazing results, but using them and setting them up can be a chore. That's why this book is essential reading for anyone who has bought or upgraded to an LX200 or its top-of-the-range companion, the RCS400 (later re-designated the LX400ACF). Features
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How do planets look Maksutov Cassegrain telescope on a 90 mm?
I recently bought a telescope and tried to see Jupiter and Mars, however, they just look like really small bright spots even 180x magnification. Is this how it supposed to look?
The planets are very small and far away. 180x is the most you can expect from a 90mm telescope. At 180x with a similar scope I saw the cloud belts of Jupiter and the moons, the polar caps of Mars, Saturn's rings and three brightest moons, and the phases of Venus. Certainly the images are small, but they are definitely bigger than the points. You need be patient and see details of the practice. I recommend trying a simple pencil sketch of what you see. I found this really helped me to see fine details.
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 New 90mm Cassegrain Telescope Automatic Star Finding  US $449.99
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 Vixen VMC95L 95mm f 11 Modified Cassegrain Telescope US $259.00
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 New Beginner Silver 90mm Cassegrain Telescope Bundle US $224.99
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 New Beginner Black 90mm Cassegrain Telescope Bundle US $224.99
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 New Beginner White 90mm Cassegrain Telescope Bundle US $224.99
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 New Silver 90mm Cassegrain Telescope Kids Pak Bundle US $214.99
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Celestron 52268 C90 Mak Spotting scope (Black)
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DescriptionPerfect for all Types of Viewing Situations! Celestron's C90 Mak is ideal for outdoor and wildlife observing, as well as hunting and celestial viewing. The Maksutov optical design is recognized for being a portable design that is easy to use and has a variety of applications, making it an excellent choice for both terrestrial and astronomical usage. This C90 Mak has excellent optics with razor sharp images over a wide field. Celestron’s 52268 90mm Maksutov Spotting Scope delivers excellent high power optics in a compact, affordable package. The 52268 package includes a backpack style soft carrying case, an 8x21 erect image finder scope, a 1.25 inch size correct image 45* prism diagonal, and a fully coated 32mm plossl eyepiece for a magnification of 39X. The Maksutov-Cassegrain design of the C90 uses a combination of mirrors and lenses; this “folded” optical system has a focal length of 1250mm in a body only twelve inches long. The Maksutov design delivers high power views without a trace of the chromatic aberration, also called blue fringing, that can distort high power views in competing refractor style spotting scopes. At 40X magnification where some low cost spotting scopes start to seem fuzzy, the C90 is just getting started. The C90 uses the same 1.25 inch eyepieces used in astronomical telescopes. The standard equipment 32mm plossl eyepiece yields a magnification of 39X, but many other eyepieces can be used to vary the magnification. The Celestron model 52268 seems very well built, with excellent multi-coatings visible on the front lens. The real beauty of this 90mm Maksutov spotting scope, however, is in the view it offers. When I use an optional 12.5mm eyepiece to look at Jupiter at 100X I can clearly see Jupiter’s major cloud bands as well as its four moons. When I look at the Moon and stars I can easily push the magnification to 200X with an optional 6mm eyepiece. When I look at birds in the backyard, I’m treated to delightful views full of vibrant color and crisp detail. With a close focus distance of only 15 feet, the detail and texture I see is simply amazing. High magnification viewing requires a solid tripod, of course. Celestron’s Heavy Duty Altazimuth Tripod comes with slow motion controls to allow the scope to be pointed precisely, and I can clamp the dovetail base on my CG5 mount for astronomical use. The other drawback to high magnification viewing is a narrow field of view; high magnification makes it hard to follow moving targets like birds in flight. Overall the Celestron C90 Maksutov Spotting Scope does a fine job as a companion to good pair of binoculars. The C90 also doubles as a portable astronomy scope; it won’t show the flag on the Moon but it will show thousands of craters on the Moon as well as showing the moons of Jupiter and the rings of Saturn. --Jeff Phillips Pros: Compact and portable Excellent high power optics Upgradeable with 1.25” eyepieces Adaptable for astronomy and photography Cons: Not waterproof Features
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Celestron NexStar 6 SE Telescope
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DescriptionThe Celestron NexStar 6SE Telescope is a state-of-the-art design that allows you to view incredibly detailed celestial bodies. The patented single-fork arm enables smooth operating within the optical tube. With the NexStar 6SE Celestron Telescope, the quality is undeniable and the viewing is spectacular as the Go To buttons capture the object of your choice. With the Celestron NexStar 6SE Telescope, you get serious performance and easy portability in this high-quality altazimuth computerized telescope.Features:6" Schmidt-Cassegrain telescope with 150mm aperture44% more light gathering power than 5" models1500mm focal lengthFocal ratio: 10Ultra portable - weighs 30 lb including the tripodCombines the classic heritage of the original orange tube telescopes with the latest state-of-the-art featuresStarBright XLT high transmission coatings come standardCelestron's unique patented single fork arm with integral hand control design provides a rigid and smooth operating structure for the optical tubeStar diagonal provides more comfortable viewing position when observing objects that are high in the skyProven NexStar computer control technologyIncludes:Quick release fork arm mount, optical tube and accessory tray for no-tool setupStarPointer finderscope to help with alignment and accurately locating objectsSturdy computerized altazimuth mountInternal battery compartment to prevent cord wrap during useUltra sturdy steel tripod with accessory tray40,000 object database with 200 user-definable objects and expanded information on over 200 objectsSkyAlign allows you to align on any three bright celestial objects, making for a fast and easy alignment processFlash upgradeable hand control software and motor control units for downloading product updates over the InternetAutoguider port for long exposure astrophotographyDC Servo motors with encoders on both axesCustom database lists of all the most famous deep-sky objects by name and catalog number; the most beautiful do Features
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Celestron 52238 C70 Mini Mak Spotting Scope
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Description70mm (2.8") diameter 45° angled Maksutov spotting scope, 750mm focal length (f/10.7), multi-coated optics, 25-75x zoom eyepiece, 1-1/4" eyepiece adapter, table tripod, soft carrying case. Features
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Celestron 11079XLT C6-S GT XLT Advanced Series 6in Schmidt-Cassegrain Telescope
Sale Price: $1,099.00 |
DescriptionIntroducing the C6-SGT, the newest member of the Celestron Advanced Series family. Unparalleled performance, unbeaten value! The Advanced C6-SGT models come standard with Celestron's StarBright XLT coatings at no extra cost. Mounted on the Advanced GT Series computerized mount, this telescope has some high performance software and hardware features. Operated by Celestron's proven NexStar computer control technology the telescope has a 40,000+ object database with 100 user-definable objects and expanded information on over 200 objects. Custom database lists all the most famous deep-sky objects by name and catalog number; the most beautiful double, triple, and quadruple stars; variable star; solar system objects; and asterisms. using the RS-232 communication port on the hand control, you can control the telescope via a personal computer and our new flash upgradeable hand controls allow you to update your telescope's operating software via the internet. An autoguider port is also included for astrophotography. No matter at what level you are starting out, this precision instrument will satisfy your needs both visually and photographically. Features
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Orion Padded Case for 180mm Mak-Cass Telescope Optical Tube
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DescriptionWe offer a rugged, soft custom case to fit the SkyView Pro 180mm Mak-Cass. It is fully padded on all sides to provide maximum protection of your instrument. Our padded scope cases provide a convenient means for transporting and storing your scope. It'll stay cleaner and last longer, free of dings and scrapes. They're made of heavy, water-resistant polyester/nylon material with padding sewn into the inner lining. Full-length zipper allows easy access. Handle straps fit nicely in the hand and most are long enough to sling over a shoulder, too. Comfortable to carry, forgiving of bumps and bruises, and more space-efficient than boxy hard cases, our scope cases are a smart buy for any telescope owner. Get yours today! One-year limited warranty. Features
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Orion Apex 90mm Maksutov-Cassegrain Telescope
Sale Price: $229.99 |
DescriptionWith a tube length of 11 inches, a 90mm (3.5") precision-polished fully multi-coated meniscus front lens, and solid uncompromising construction. the Apex 90 Compact Mak is a paragon of portability, optical excellence, and durability. Better still, it's one of the most versatile scopes we offer. The Apex 90 delivers bright, high-contrast images, and with a focal length of 1250mm (f/13.9) you also get a generous image scale. It features a built-in 1/4"-20 adapter plate that makes it easy to mount onto a standard photo tripod for viewing grand daytime vistas. Attach a 35mm camera to the scope's visual back (with a T-ring adapter sold separately) and use the whole assembly as powerful telephoto lens for astrophotography and terrestrial shooting. What more could you want? Includes a 25mm Plossl eyepiece, 6x20 finder scope, 45-deg correct-image diagonal, and fully padded carrying case. One-year limited warranty. Features
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So You Want a Meade LX Telescope!: How to Select and Use the LX200 and Other High-End Models (Patrick Moore's Practical Astronomy Series)
List Price: |
DescriptionThe Meade LX200 series of telescopes was introduced in 1992 and represented a giant step forward in technology for amateur astronomers - computer control. The LX200 series telescopes were an instant success and have outsold all other astronomical telescopes put together. Steady development has continued to the present day, and LX200s are available in a range of apertures from 8-inch through the giant 16-inch, which is widely installed in university astronomy departments and the smaller public observatories. For anyone considering buying a high-end Meade telescope, the book offers an experienced user's guide to what can actually be achieved with it. So You Want a Meade LX Telescope also provides detailed discussions about some of the many software packages available to aid optimizing and actually using the scope. The typical results are discussed so readers can know what to expect. Also reviewed are essential accessories such as CCD cameras and the latest Active Optics units. These extraordinary telescopes are capable of amazing results, but using them and setting them up can be a chore. That's why this book is essential reading for anyone who has bought or upgraded to an LX200 or its top-of-the-range companion, the RCS400 (later re-designated the LX400ACF). Features
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Choosing and Using a New CAT: Getting the Most from Your Schmidt Cassegrain or Any Catadioptric Telescope (Patrick Moore's Practical Astronomy Series)
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DescriptionChoosing and Using the New CAT will supersede the authorâs successful Choosing and Using a Schmidt-Cassegrain Telescope, which has enjoyed enthusiastic support from the amateur astronomy community for the past seven years. Since the first book was published, a lot has changed in the technology of amateur astronomy. The sophistication and variety of the telescopes available to amateurs has increased dramatically. Computerized SCTs, Maksutov-Cassegrains, and most recently Meadeâs new and acclaimed Ritchey-Chrétiens have come to dominate the market. That means that all amateurs considering the purchase of a new telescope (not only a SCT, and not just beginners) will benefit from this detailed guide. Choosing the right telescope for particular kinds of observation (or even for general work) is far from easy â but Rod Mollise gives invaluable advice and guidance. |
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Choosing and Using a Schmidt-Cassegrain Telescope : A Guide to Commercial SCTs and Maksutovs (Practical Astronomy.)
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DescriptionAmateur astronomy is becoming more and more popular, mostly because of the availability of relatively low-cost astronomical telescopes of superb quality - commercially-made Schmidt-Cassegrain and Maksutovs. Rod Mollise's book contains everything amateur astronomers need to know about these telescopes. |
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Celestron 52233 C50 Mini Mak Weather Proof Spotting Scope
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Description50mm (2") diameter 45° angled Maksutov spotting scope, 580mm focal length (f/11.6), multi-coated optics, 25-75x zoom eyepiece, 1-1/4" eyepiece adapter, table tripod, waterproof, soft carrying case. Features
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