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
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
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.
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.
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
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
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
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.
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
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