Uranus ' innermost ten moons are: . ... C ordelia is the innermost of Uranus' known satellites: orbit : 49,752 km from Uranus diameter : 26 km mass : ? ... D iscovered by Voyager 2 in 1986. ... O phelia is the second of Uranus' known satellites: orbit : 53,764 km from Uranus diameter : 32 km mass : ? ... B ianca is the third of Uranus' known satellites: orbit : 59,165 km from Uranus diameter : 44 km mass : ? ... P uck and the other small moons are very dark (albedo less than 0.1). from LANL . ...

Closest to Jupiter (inward of the Galilean moons) are the four small moons: . Metis , . ... Metis ( "MEE tis" ) is the innermost of Jupiter's known satellites: orbit : 128,000 km from Jupiter diameter : 40 km mass : 9.56e16 kg . ... Metis and Adrastea lie within Jupiter's main ring. ... Galileo "family portrait" of Jupiter's 4 inner moons . ... Adrastea ("a DRAS tee uh") is the second of Jupiter's known satellites: orbit : 129,000 km from Jupiter diameter : 20 km (23 x 20 x 15) mass : 1.91e16 kg . ...

Astronotes Armagh Planetarium's Stellar Blog! ... Earth Satellites . ... Sadly C/ 2014 Q2 will probably not be as spectacular a sight as Comet C/ 2011 W3 (Lovejoy), visible near Earth?s horizon in this nighttime image from the International Space Station on 22 December 2011. ... The comet made its closest approach to Earth on 7€а January 2015, at a distance of 72 million km (45 million miles).€а In January the comet will race though the constellations Eridanus, Taurus, Aries and Triangulum. ...

... VB 10: A Large Planet Orbiting a Small Star . ... Credit: JPL-Caltech , NASA Explanation: Can a planet be as large as the star that it orbits? Recent observations have discovered that nearby Van Biesbroeck's star might have just such a large planet. ... Since faint M-type stars like VB 10 are so common, planetary system s surrounding them, including planets larger than their parent star, might be more common than planetary systems like our own Solar System . ... NASA Official: Jay Norris. ...

Proteus . Neptune VIII - 1989N1 . Proteus [PROH-tee-us], like all six of Neptune's newly discovered small satellites, is one of the darkest objects in the solar system -- "as dark as soot" is not too strong of a description. ... Topographic Map of Proteus . ... As with all maps, it is the cartographer's interpretation; not all features are necessarily certain given the limited data available. ... This image is a shaded relief map of Proteus, a small inner satellite of Neptune. ...

... A small, newly-discovered asteroid named 2008 TC3 is approaching Earth and chances are good that it will hit. ... Monday, 6 October 2008 23:47 . International Year of Astronomy, Ireland National Node . ...

Supernova 2009js in NGC 918 . This page is devoted to information on Supernova 2009js in NGC 918 . Basic information on this SN, including the last reported brightness, on this Supernova can be found on the main page . Information on the original web pages for many of these images can be found on the updates and links web pages. Discovered independently by Lick Observatory Supernova Search (USA) and Koichi Itagaki (Japan). ... 2009/10/11.44 . 17.2 . ... Joseph Brimacombe . ...

... ESO . ... Galaxies . ... Now, however, Dante Minniti and Albert Zijlstra [1] , working at the ESO 3.5-metre New Technology Telescope (NTT), have found a large halo of old and metal-poor stars around one of the dwarf galaxies in the Local Group. ... This does not necessarily imply that all dwarf galaxies must likewise lack halos: it is also possible that the halos of the Magellanic Clouds were stripped away when they came too close to the Milky Way sometime in the past. ... A Dwarf Galaxy With A Halo...

Image credit: Michael Nolan, Arecibo Observatory. These radar images of near-Earth asteroid 2001 SN263 were obtained on 2008 Feb 12 and 13. ... Image from Feb 12 . ... First near-Earth triple asteroid discovered by Arecibo Observatory . ... was discovered this week by astronomers at the sensitive radar telescope at Cornell University?s Arecibo Observatory in Puerto Rico. ... For example, Arecibo has discovered more than half of the near-Earth binary asteroid systems discovered since 1999. ...

... When the Voyager 2 spacecraft flew by the planet Uranus in January 1986, astronomers were treated to their first close-up glimpse of the satellites that orbit the seventh planet. ... But by far the most intriguing of those 15 satellites was a jigsaw-puzzle world called Miranda . ... How dark was it at Miranda? One of the Voyager scientists put it this way: Taking pictures in the Uranus system is like trying to do photography in a ballpark at night when the only light comes from a single candle. ...

... Tonight's Sky . ... The Magazine . ... Observing . ... Gravitational wave search provides insights into galaxy evolution and mergers . ... The double star 54 Leonis, spiral galaxy NGC 3198, and emission nebula NGC 3199 . ... Astronomy for Kids . ... Observing springtime deep-sky objects with a large telescope . Springtime observing for small telescopes . ... small (4 inches or smaller) . ... Receive news, sky-event information, observing tips, and more from Astronomy's weekly email newsletter. ...

Estimating the NEO Population and Impact Risk: Past, Present and Future . ... Since most of the risk resides in the largest impactors, finding that fraction of the largest bodies, and that none of them has a significant chance of impacting in the next century or so, "retires" more than 90 % of the impact risk, including most of the risk of a globally catastrophic impact event. ... In the mid-size range, from ~150 m to ~1 km, the main risk is from tsunami generated by an ocean impact. ...

Small creature are you Small creature you are How quickly you are uncovered Naked and cold Mumbling and crying Knowing everything's been discovered Many secrets have you Many secrets you have But it's only a matter of time Did you finally decide There's nowhere to hide And really no reason why Hey Mr. Shame Have you got a name I don't feel like calling you Buddy I don't want ...

JSC scientists have their names in the stars By Cathy Watson and Kendra Ceule M arilyn Lindstrom is #5281, David McKay is #6111 and Mike Zolensky is #6030. ... Several past and present Johnson Space Center employees have been among those people honored with asteroid names, including the following: Don Bogard: asteroid name `Bogard,' #4794 Bogard, Chief Scientist for Research on Astromaterials for the Astromaterials Research and Exploration Science (ARES) office, has worked at JSC since 1968. ...

. This is a new popup window - close it when you are done . Submitted by Mario Motta M.D. on 10/03/2010 21:35:14 . MGC6822 . Known as Barnards galaxy, who first discovered this small satellite galaxy of our milky way, about 1.6 million light years away . Logon to post a follow-up comment or review comments from others . Copyright (c) Amateur Telescope Makers of Boston, Inc. About Us Contact Us

Ultracompact dwarf galaxies (UCDs) are among the densest stellar systems in the Universe. With typical masses of 10^7 to 10^8 solar masses and half-mass radii between 10 to 100 pc they are more than a factor 1000 denser than dwarf galaxies of the same mass. They also show evidence for elevated mass-to-light ratios, which could be due to the presence of massive black holes or unusual stellar IMFs as a result of their extreme densities. ...

... Bad Astronomy . ... Bitesize Astronomy . ... Have you ever looked at pictures of Saturn's rings and noticed what look like gaps in the rings? ... Gian Domenico Cassini discovered a large gap in Saturn's rings in 1675. Later, an astronomer named Encke discovered a smaller gap near the edge of the rings. ... It was found long ago that an orbit in the Cassini Division, as the large gap is named, has a period almost exactly one-half that of one of Saturn's moons named Mimas. ... 2008 Phil Plait. ...

... Its optical telescopes – the Europe's largest telescope of the mirror diameter 6 m BTA (Big Telescope Azimuthal) Medium-Size telescope of the mirror diameter 1 m ( Zeiss-1000 ) and the small telescope of the mirror diameter 0.6 m (Zeiss-600) – are at the altitude 2100 m above sea level 17 km away from the settlement Nizhnij Arkhyz. ... Nizhnij Arkhyz . SAO staff members live in the settlement Nizhnij Arkhyz at a distance of 25 km to the southward of stanitsa Zelenchukskaya. ...

... Auroral Currents . ... 25b. Io Dynamo . ... Aurora from Space . ... The giant planet Jupiter has four large moons, discovered by Galileo and visible through good binoculars. ... A dynamo is created in a magnetic field by an electric circuit, part of which is moving relative to the rest (additional conditions must also be met). ... Furthermore, the plasma between them conducts electricity very well along its magnetic field lines, which act as if they were wires connecting Io and the planet (drawing)....