... Currently, there is very little information on comets which are active beyond the orbit of Jupiter. ... Previous observations conducted by our team with the SAO RAS 6-m telescope showed that some of these comets have extended tails dissimilar to the tails of comets forming at close heliocentric distances. ... We for the first time measured the linear polarization of scattered emission for the two distant comets C/2010 S1 (LINEAR) and C/2010 R1 (LINEAR) at heliocentric distances of 5.9-7.0 au. ...

... Contacting and discussing with people sharing your interests, participating in night sky observations with telescopes as well as a large choice of astronomical books, magazines and video-tapes out of our club library. ... A reasonable compromise for observing both planets and brightest deep sky objects ( nebulae, galaxies) are either a 4 to 8 inch mirror telescope ( Newton, Schmidt-Cassegrain ) or a 3 to 4 inch refracting ( lens) telescope. ... Where can I buy a telescope in Luxembourg ? ...

The telescope configured for measurements of exoplanet transit light curves is seen from the north side in this May 2010 photo. Lower portions of the dome have been insulated to reduce daytime heating by radiation from the warm metal dome. ... The interior of the dome is seen soon after the encoder upgrade in February 2007. ... Karen Collins, a research astronomer specializing in exoplanets, helped with the telescope installation in August 2006. ... kielkopf at louisville dot edu . ...

... IRTF: Scanning the Infrared Skies . ... Above, NASA's Infrared Telescope Facility (IRTF) poses in front of a starry background. ... This 3-meter telescope was established in 1979 and spends about half its time observing Solar System objects. The Pleiades Star Cluster . ... Sirius: The Brightest Star in the Night . ... As Sirius is 8.7 light years distant, it is not the closest star system -- the Alpha Centauri system holds this distinction. ... Galileo Demonstrates the Telescope . ...

GRANAT is the Russian x-ray sattelite launched to the high apogee orbit (200,000 km) and operated almost for 10 years (1989 -1999) , carrying out four major instruments: French SIGMA coded-mask hard x-ray telescope (30-1000 keV), Soviet ART-P coded-mask telescope (2??-60?? keV), all-sky monitor WATCH (6-150 keV), and a gamma-burst detector PHEBUS . ... Since September 1994, GRANAT is in the survey mode. ... Explore pages devoted to individual GRANAT instruments (including main scientific results): . ...

... This site requires Javascript to function correctly. ... Don't rush to buy a telescope - As Alan MacRobert of Sky & Telescope Magazine says, 'To put a telescope to rewarding use, you first need to know the constellations as seen with the naked eye, be able to find things among them with sky charts, know something of what a telescope will and will not do, and know enough about the objects you're seeking to recognize and appreciate them.' ... ASRAS can help you choose the telescope that's right for...

... This telescope is also able to be used in a non-assisted manner. ... Upon availability, the use of the Club's 10" dobsonian mount telescope. Upon availability, the use of the Club's 16" Meade LightBridge telescope. ... Use of the Club's Coronado Personal Solar Telescope and Cemax Eyepieces. Use of the Club's Video Eyepieces. ... Use of Club Binoculars. ... It's all part of being here and just one of many telescopes that are the benefit of being a member of the Richland Astronomical Society. ...

... Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer. May 26, 1999 . GRB 990510: Another Unusual Gamma Ray Burst . ... The type of powerful explosion that caused this gamma-ray burst is not only still unknown, but found to be fading in an unusual way . Tomorrow's picture: The Expanding Universe . ... About APOD > . ...

... They are concerned with Attitude Control System of the spacecraft, satellite visibility from tracking stations, limits on the satellite autonomous operations during the orbit, and needs for auxiliary operations with the spacecraft. ... Among the operational constraints the most important one is the number of programmed slews per orbit, which determines the maximum number of radio sources to be observed during one orbit. ... System temperature (K) . ... Progress of the RadioAstron Project in Pictures...

Solar physics at Stockholm Observatory . ... IMAGE GALLERY . ... Observations of an Active Region in different wavelengths ( Top, left to right ) G-band, Fe I 6302 Magnetogram, Fe I 5576 Dopplergram. Bottom, left to right ) Ca II K, H alpha, H alpha Dopplergram. ... Great images and movies of a great sunspot. ... Extraordinary sunspot image . A magnificient G-band filtergram of solar active region 8218 acquired with a Kodak Megaplus 4.2 2048x2048 CCD camera on May 12, 1998. ...

... The First (Experimental) International Astronomy Olympiad . The following olympic problems were proposed for the participants on the theoretical part: Grades 8-10 . ... Why is it sometimes better to use a small telescope in orbit around the Earth than it is to use a large telescope on a mountain top? ... What will an observer looking to the Moon through the telescope see? ... Paper with a drown circle and table of maximal elongations of Mercury and Venus had been done for participants. ...

... Bad Astronomy . ... Bitesize Astronomy . ... Mad Science . ... Keep Bad Astronomy close to your heart, and help make me filthy rich. ... Area of science: Astronomy . ... Why don't we(NASA) send another space telescope into space? ... Currently, NASA plans on launching the "Next Generation Space Telescope" sometime around the year 2008. ... The 'scope itself will have a large shield that will keep the Sun's light off the mirror. ... 2008 Phil Plait. ... Subscribe to the Bad Astronomy Newsletter! ...

... Ciel Espace, le magazine qui vous guide toujours plus loin . ... les plus belles images de l'Univers d†йcrypt†йes pour vous . ... des pages consacr†йes †а la publication de vos photos Mais c'est aussi une vraie communaut†й avec laquelle partager votre passion et nourrir votre curiosit†й. Accueil Ils photographient le ciel au Very Large Telescope . ... Astronomes ou ing†йnieurs, ils profitent de travailler sous le meilleur ciel du monde pour s'adonner †а leur passion de la photographie. ...

... SAO RAS , BTA, Pastukhova Mount, KChR, Russia . ... Informatics Department, Project supported by RFBR , grant 07-07-00211a, "The development of the data analyse technologie for study of the Solar system small bodies orbits with guide-telescopes" . ... Vladimir N.Chernenkov , Vladimir S.Shergin , Olga P.Zhelenkova , Vladimir V.Komarov, Alexej F.Nazarenko and Vladimir E.Panchuk . ... View to Sky via 145mm refractor . Click to Image for view of the last observed FITS-image (with WCS-header). ...

William Gershel (1738 - 1807). ... Gershel twice widened the Solar system and "turned" the Sun, proving its motion in the Universe. ... The Solar system became twice more. Besides he opened two satellites of Uranus (1789) with the reverse motion (1797) and two new Saturn satellites (1789). ... In 1783 Gershel discovered the Sun's motion in the Space and its direction. ... The 20 feet telescope of Gershel opened the nature of the mysterious "milky nebulas" which turned to be the star congestions. ...

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... The computer is set up so that the software for whatever camera is running and the switch box set to channel B. This allows the monitor and keyboard upstairs to operate the computer. Now the telescope can be set up. ... In the North west of the dome, there is a motor that turns the dome. The dome opens with a motor that pulls the slit back. ... Each camera had a specific alignment with the telescope. ... The lights on the roof provide a nice target to center in all three telescopes. ...

... As a technical demonstration project for the NASA Advanced Communications Technology Satellite (ACTS), we have implemented remote observing on the 10-meter Keck II telescope on Mauna Kea from the Caltech campus in Pasadena. The data connection consists of ATM networks in Hawaii and California, running at OC-1 speeds (45 Mbit/sec), and high data rate (HDR) satellite antennae at JPL in Pasadena and Tripler Army Medical Center in Honolulu. ... These networks were connected via NASA's ACTS satellite. ...

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