The development of the telescope, together with increased knowledge of things, brought men to see that the earth is not what man had once thought it to be. ~ Joseph Franklin Rutherford


Features: Push-to computerized Dobsonian reflector telescope can lead you to more than 14,000 celestial objects with its included IntelliScope Object Locator.

Big 10" (254mm) aperture reflector telescope gathers loads of light for bright views of nebulas, galaxies, star clusters, and close-up study of the Moon and planets - Stable support provided by the wooden Dobsonian telescope base and CorrecTension adjustment knobs keep the telescope optical tube balanced in any viewing position.

Simple Dobsonian point-and-view ease of use plus IntelliScope smarts equals a reflector telescope for a lifetime. Includes 2" Crayford focuser, two 1.25" Sirius Plossl eyepieces (25mm and 10mm), a 9x50 right-angle correct-image finder scope, eyepiece rack, collimation cap, and Starry Night software.
Features: High quality 127mm (5") Maksutov-Cassegrain. Quick-release fork arm mount, optical tube and accessory tray for quick tool no set up. StarPointer finderscope to help with alignment and accurately locating objects. Auxiliary port for additional accessories such as GPS accessory. Includes "The SkyX" Planetarium software.

Amazon Review: Alignment and tracking feature works very well as long as you follow Celestron's tips in the manual. Observed Jupiter for over an hour with barely any perceptible drift. The tour function works well, though I recommend a lower power eyepiece to start because it seems that how far away you are from your alignment stars (or planets) has an affect on accuracy. Sometimes it puts objects dead center, sometimes it will be toward a side of the eyepiece. The good news is that you can center it and the scope will continue to track it very accurately allowing you to swap in a more powerful eyepiece.
Features: Computerized GoTo reflector telescope capable of motorized guidance to any of over 4000 celestial objects, and then tracks the object until you're ready to move on to the next one. Substantial 5.1" aperture GoTo reflector telescope collects light for great views of night-sky objects like nebulas, star clusters, bright galaxies, and the Moon and planets.

Aligning the computerized GoTo system with SkyAlign technology is easy for beginners since you don't have to know the names of the alignment stars.

Features a 2" rack-and-pinion focuser for great wide-field observations with optional 2" eyepieces (2" eyepieces sold separately), and also includes a 1.25" eyepiece adapter. Includes two 1.25" Kellner eyepieces (25mm and 10mm) an EZ Finder II reflex sight for easy aiming, adjustable tripod, dust caps, Starry Night software, and more!
Since the earliest days of astronomy, since the time of Galileo, astronomers have shared a single goal - to see more, see farther, see deeper. Telescopes help us to see far distances. The first telescope was invented in the early 1600s in the dawn of the Scientific Revolution. Before then people had to rely on the naked eye. Much reliance was placed on people with sharp eyes. When telescopes came about they were quickly adopted by mariners and travelers and members of the military. They soon were put to scientific use. Galileo Galilei was the first to use telescopes for the study of of the stars and planets. 

The James Webb Space Telescope is NASA's next orbiting observatory and the successor to the Hubble Space Telescope. A tennis court-sized telescope orbiting far beyond Earth's moon, Webb will detect infrared radiation and be capable of seeing in that wavelength as well as Hubble sees in visible light. JWST is set to launch in 2018, and will be the premier observatory of the next decade, serving thousands of astronomers worldwide. It will study every phase in the history of our Universe, ranging from the first luminous glows after the Big Bang, to the formation of solar systems capable of supporting life on planets like Earth, to the evolution of our own Solar System. Webb will reside in an orbit about 1.5 million km (1 million miles) from the Earth. Hubble is stationed in the low-earth orbit, 354 miles from the surface of the Earth.

The Hubble Space Telescope was launched on April 24, 1990. It is stationed in the low-earth orbit, 354 miles from the surface of the Earth. The cost of the 2,800 watt telescope was 2.5 billion. Hubble is a telescope that orbits Earth. Its position above the atmosphere, which distorts and blocks the light that reaches our planet, gives it a view of the universe that far surpasses that of ground-based telescopes. Hubble is one of NASA's most successful and long-lasting science missions. It has beamed hundreds of thousands of images back to Earth, shedding light on many of the great mysteries of astronomy. Its gaze has helped determine the age of the universe, the identity of quasars, and the existence of dark energy.

The Stratospheric Observatory for Infrared Astronomy (SOFIA) is a joint project of NASA and the German Aerospace Center (DLR) to construct and maintain an airborne observatory. SOFIA is based on a Boeing 747SP wide-body aircraft that has been modified to include a large door in the aft fuselage that can be opened in flight to allow a 2.5 meter diameter reflecting telescope access to the sky.

SOFIA is designed for infrared astronomy observations in the stratosphere at altitudes of about 41,000 feet (about 12 km). SOFIA's flight capability allows it to rise above almost all of the water vapor in the Earth's atmosphere, which blocks some infrared wavelengths from reaching the ground. At the aircraft's cruising altitude, 85% of the full infrared range will be available. The aircraft can also travel to almost any point on the Earth's surface, allowing observation from the northern and southern hemispheres.
Product Description: Celestron's NexStar 90 SLT is the most compact telescope in Celestron's computerized NexStar line, with excellent Maksutov-Cassegrain optics that deliver delightful views of the Moon and planets. The NexStar 90 SLT package includes everything but the batteries. With a fully illustrated quick set-up guide, no tools are needed to assemble the telescope with its steel tripod, motorized mount, and computer hand control. Two eyepieces are included, a 25mm for 50X magnification and a 9mm eyepiece for 139X. The package even includes the latest version of "The Sky X", software that turns your PC into a virtual planetarium. The Maksutov optical design of the NexStar 90 SLT gives the telescope a focal length of 1250mm in an optical tube only twelve inches long. This long focal length is ideal for bringing out detail on the Moon and planets. When I look at the Moon for example, the view is crisp and clear with no trace of false color. When I look at Saturn I can easily push the magnification to 200X with an optional 6mm plossl eyepiece. When I look at deep space objects I often like to use an optional 32mm plossl eyepiece (39X magnification) because objects like M45 the Pleiades cluster and M31 the Andromeda galaxy look better with a wider field of
view. Also features Celestron's patented SkyAlign technology.

With SkyAlign I don't need a star chart or a compass to align the telescope, I just enter the date and time then point the telescope at three bright stars. SkyAlign tells me the star names, and allows the telescope to find over 4,000 stars, planets, and galaxies by just pushing a button. The accurate tracking makes it easy to get high power views of the planets, and allowed me to take some great pictures using a Celestron NexImage webcam. I also like the "Two-Star align" and "Solar System align" modes because I can often get the NexStar system up and running while older scopes are still waiting for their alignment stars to appear in he twilight. comfortable view.
Features: 80mm achromatic refractor telescope. 400mm focal length. Computerized Alt-Azimuth Mount- The Cube- Hot Product 2008 by Sky and Telescope Magazine. 5-speed drive speed for precise tracking. Includes GoToNova hand controller, the most intuitive controller on the market. 5,000 object database plus 256 user-defined objects. K10 and K20 eye pieces.
Product Description: Introducing iOptron SmartStar-E-R80 Entry Level telescope. Designed with the latest technology the 80 mm lens is crafted with a fluorite based, low dispersion glass that is ground and polished to exact specifications. The precision design is excellent for viewing bright stars, planets and their moons, as well as for bird watching and other land objects. Two eye pieces come standard to allow for flexibility in viewing either a wider field or a single focused object. The SmartStar-E-R80 refractor telescope comes with our patented Alt-Azimuth Mount, a.k.a. The Cube, rated 4-star by Sky and Telescope Magazine.
This compact mount design is probably the most functional and flexible unit on the market. Both axis motors are built into a small single unit which is universally compatible with all telescopes using a dove-tail connection. In addition, there are no “dead spots” – so you can point your telescope to ANYWHERE above the horizon, whereas, other mounts block the telescope tube at certain points of rotation. This mount also comes standard with AC connection.

The ler on each SmartStar telescope is much easier to use than other similar products. The hand controller is more intuitive with menu categories better organized. It also has a larger LCD screen with more lines of content compared with the competition. Using the easy-to-use hand controller and its large LCD screen, you can easily set up your telescope and select where you want to go. The revolutionary GoToNova computerized control system is by far the most technologically advanced automated tracking system available on the market today. With a database of 5,000 celestial objects, including all of the most famous galaxies, nebulae, star clusters, not to mention the planets, you’ll be able to enjoy star gazing with the simple push of a few buttons.
Product Description: The Meade 3514-04-20 ETX Portable 90-Millimeter Telescope is designed to be the ideal, ultra-portable telescope. The ETX marries Meade’s unsurpassed optics with industry-leading electronics to deliver a truly exceptional viewing experience. Meade’s unmatched Maksutov-Cassegrain optics provide high resolution and contrast for more detail and the ability to see fainter objects.

Combine that with the easiest alignment system available and the Autostar controller and you have simple, immediate access to over (30,000) celestial objects- all at the push of a button. With the ETX’s classic styling and advanced engineering, your telescope is ready for a lifetime of use. This telescope has a 90-millimeter aperture, a focal length of 1250-millimeters and a focal ratio of f - 13.8.

All ETX Telescopes come with razor sharp optical systems, computerized GOTO mounts, adjustable tripods, AutoStar Suite Software and a 26-Millimeter (Series 4000 Super Plossl) eyepiece.

A hard carry case for telescope and carry bag for tripod are also included. Suggested accessories include Series 4000 Eyepieces and no.546 AC power adapter. The Meade 3514-04-20 ETX Portable 90-Millimeter Telescope comes with a 1-year warranty.

Serious astronomers for years have flocked to Meade telescopes for their quality optical systems and patented technology. Consumers know that "Meade Optics Inside" means that what they see through our telescopes will be views that are detailed, crisp and full of contrast. Look through a Meade this evening and see what you've been missing.

Product Features: Ultra-portable telescope. High resolution and contrast for more detail and the ability to see fainter objects. 90-millimeter aperture. Focal length of 1250-millimeters with a focal ratio of f/13.8. Comes with a 1-year limited warranty.
Giant Magellan Telescope

The GMT is one of several large ground-based optical telescopes in development. Situated high and dry in Chile, it will have seven primary mirror segments, each over 26 feet across, arranged like the petals of a flower. GMT team goals include investigating three of the hottest cosmic topics now on the table—dark matter, dark energy, and planets outside our solar system—as well as the formation of galaxies and the growth of black holes. Like its competitor giant scopes, it will feature adaptive optics, which corrects image distortions caused by our turbulent atmosphere.

Thirty Meter Telescope

The TMT will be like a goliath version of Keck, currently the largest optical/infrared telescope with its twin 33-foot mirrors. Comprised of hundreds of segments, the TMT's composite mirror will be over 100 feet across, enabling it to see objects nine times fainter than Keck can. Altogether, the TMT will be able to gaze back to just a few hundred million years after the Big Bang, which astrophysicists put at 13 billion years ago. It, too, will enable the study of galaxy formation and of Saturn-sized Exoplanets orbiting nearby stars, among other pursuits.
European Extremely Large Telescope

The E-ELT will dwarf all other optical/near infrared telescopes. Its multi-faceted mirror, 138 feet across, will have almost a thousand hexagonal segments each almost five feet wide. Like Magellan and TMT, astronomers will use it to conduct a kind of stellar archeology, analyzing the earliest galaxies, as well as to scrutinize the spectra of extrasolar planets for atmospheric conditions conducive to life. One hope is to directly measure, for the first time, the acceleration of the universe's expansion. A site will be chosen by the end of 2010.

Large Synoptic Survey Telescope

The LSST differs from the other ground-based optical telescopes in that it will have a wide field of view and will be able to move quickly between different areas of sky. Using the world's largest digital camera (3,200 megapixels), the LSST will do brief exposures of 10 to 20 seconds each. This will be ideal for investigating events too short-lived to be readily studied today, such as the trajectories of asteroids that might pose a threat to Earth. And by imaging the entire night sky every few nights, the LSST will offer, after about a decade of operation, the first "movie" of the universe.