... Credit: NASA / JPL-Caltech / Univ. of Virginia Explanation: What has created a large dust ring around Saturn? At over 200 times the radius of Saturn and over 50 times the radius of Saturn's expansive E ring , the newly discovered dust ring is the largest planetary ring yet imaged. ... A leading hypothesis for its origin is impact material ejected from Saturn's moon Phoebe , which orbits right through the dust ring 's middle. ... Publications with keywords: dust - Saturn - Phoebe . ...

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• Астронет > Giant Dust Ring Discovered Around Saturn
• Saturn-Sized Worlds Discovered
• The Anthe Arc around Saturn

... 2009 October 13 . Giant Dust Ring Discovered Around Saturn . ... Explanation: What has created a large dust ring around Saturn? At over 200 times the radius of Saturn and over 50 times the radius of Saturn's expansive E ring , the newly discovered dust ring is the largest planetary ring yet imaged. ... An additional possibility is that the dust ring supplies the mysterious material that coats part of Saturn's moon Iapetus , which orbits near the dust ring 's inner edge. ... About APOD | ...

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• APOD: 2006 October 16 - In the Shadow of Saturn
• APOD: 2008 October 20 - Moons, Rings, and Unexpected Colors on Saturn

... 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. ...

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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 . ...

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... Even the most modest telescope reveals the beauty of Saturn's rings. ... For details on observing the rings, see "Running Rings Around a Planet," Mercury , September/October 1996, p. 9.] Eerie rings. ... From Earth, we can see the three main rings. ... Conveniently for observers on Earth, the rings are tipped by Saturn's 27-degree tilt. ... When the twin Voyager spacecraft flew by Saturn in the early 1980s, they discovered that the main rings consist of hundreds of ringlets (see photo below). ...

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• ASP: Guest Observer
• ASP: Contents, September/October 1999
• ASP: Contents, September/October 2006

Astronotes Armagh Planetarium's Stellar Blog! ... Armagh Planetarium . ... Moon . Planets . ... Space Flight . ... A gorgeous image of the real ?Lord of the Rings? ... Saturn is a big planet, about nine times as wide as the Earth, so the rings are huge. Let me put them into scale, if Saturn and the rings were moved so that one edge of the rings touched the Earth, then the distance across the rings to the opposite edge would extend more than halfway to the Moon. ... Saturn has a lot of moons. ...

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• Rings Around an Asteroid | Astronotes
• Comets And Asteroids | Astronotes
• asteroids | Astronotes

Armagh Observatory, 24 July 2000: . The Minor Planet Center at the Smithsonian Astrophysical Observatory, Cambridge, Massachusetts, USA, has announced the discovery of a new moon of Jupiter, bringing to 17 the number of known satellites orbiting the giant planet. ... At that time, Jupiter was about 370 million miles from Earth, just about as close as it ever gets, and therefore a good time to search for any faint satellites. ... Last Revised: 10th August 2000 . ...

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• Armagh Observatory
• Extrasolar Planetary Systems: More Like Ours - by David Perez-Suarez, Armagh
• Searching for Planets Around Other Stars - from Galway: Monday 13 October 2008

New Satellites of Saturn . On July 26, 1995, Amanda Bosh of Lowell Observatory announced the discovery of at least two and perhaps four new satellites of Saturn . The discovery was based upon images taken by the Hubble Space Telescope on May 22, 1995, when Saturn's rings were tilted edge-on to the Earth . ... The two satellites S/1995 S1 and S2 lie inside Saturn's thin, eccentric "F" ring . ... The fourth satellite S/1995 S4 is 6,000 kilometers (3,700 miles) beyond the F ring. ... S/1995 S 3 . ...

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• Saturn's Satellite Atlas
• Saturn's Moon Titan
• APOD: October 16, 1995 - Starburst Galaxy M94

... ATNF Home . ... About ATNF overview . News | ... Australia Telescope Steering Committee . ... Australia Telescope User Committee . ... Murchison Radio-astronomy Observatory . ... Parkes radio telescope . ... Mopra radio telescope . ... Visiting Parkes radio telescope . ... Parkes radio telescope webcam . ... Now, new Australia Telescope observations of the polar ring galaxy NGC 4650a suggest that the dark matter in this galaxy lies in a flattened distribution aligned with the polar ring. ...

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• Research - Compact high-velocity clouds around the Milky Way
• Archive of VLBI Observations Majordomo List
• ATNF Daily Astronomy Picture

... 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). ... The drawing is not to scale. ... The Hubble Space Telescope , using its Wide Field and Planetary Camera 2, has been photographing auroras of the planet Jupiter. ...

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• The Motion of Magnetically Trapped Particles -- History
• Radiation Belts
• The Acceleration of the Aurora

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). ... Exploration" home page (index) Glossary . ...

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• Saturn's Small Moons
• Dr. Victoria I. Prokhorenko
• Galileo to Jupiter

... Observatory . ... Science . ... Science Users Information > Science Publications > Archive of the ESO Enews > ESO-Enews #24: October 2012 . ... Observing with ESO Telescopes . ... Instrument Pipelines . ... ESO-MIDAS . ... Data Handling and Products . ... Science Data Products Forum . ... Science Archive Facility . ... ESO Data . ... Archive ESO Enews . ... The new ESO Science Data Products Standard ( Issue 4, dated 15/10/2012 ) fully decribes the Phase 3 format standards. ... ESO ARCHIVE NEWS . ...

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• Rivi: Be Stars
• Planet Found in Nearest Star System to Earth | ESO
• Richest Planetary System Discovered | ESO

... More on 51 Peg: . The discovery of a Jupiter--mass planet in orbit around the solar--type star 51Peg has been reported by Michel Mayor and Didier Queloz (Geneva Observatory) on October 6th at the 9th Cambridge workshop on "cool stars, stellar systems, and the sun" held at Florence (Italy). ... Recall that the measurements of radial velocity only yield v sin i which in turn gives us M sin i. For most values of i, sin i will be greater than 0.5 and this gives a mass estimate of 0.5 Jupiter masses. ...

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• Astronomy Plus CCD Images of Galaxies
• The Galaxy Gallery: Messier Objects

... 2011: . Detection of galaxies with large peculiar velocities . ... New galaxies with polar rings . ... The new catalog contains 275 galaxies. ... Radio galaxy RC J0311+0507, a unique object of the early Universe . ... The estimation of the stellar population age in the host galaxy via the multicolor photometry (BTA) and new infrared data (UKIRT, 2011), amounting to 0.8 Gyr results in the moment of its formation when the universe was about 0.5 milliard years old (z~10). ... Archive . ...

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• New LBV Star Discovered in the Galaxy
• G 89-14
• New Polar Ring Galaxies

... Tonight's Sky . ... The Magazine . ... Observing . ... The double star 54 Leonis, spiral galaxy NGC 3198, and emission nebula NGC 3199 . ... Does Pluto have rings? ... A fter our team discovered Pluto's small moons, we realized impacts on them might generate ejecta that gets into orbit around Pluto, creating rings around the planet. ... Get instant access to subscriber content on Astronomy.com! ... Receive news, sky-event information, observing tips, and more from Astronomy's weekly email newsletter...

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• Asteroid Chariklo found to have two rings | Astronomy.com
• Scientists discover a Saturn-like ring system eclipsing a Sun-like star |
• Gaseous ring around young star raises questions | Astronomy.com

... S. G. Pugacheva. Sternberg State Astronomical Institute, Moscow, 119899, Russia, pugach@sai.msu.ru . ... Sternberg State Astronomical Institute, Moscow University, Russia, pugach@sai.msu.ru . ... Sternberg State Astronomical Institute, Moscow University, 13 Universitetsky pr., ... Sternberg State Astronomical Institute, Lomonosov Moscow State University, Universitetskii pr. ... S. G. Pugacheva and V. V. Shevchenko, Sternberg State Astronomical Institute, Moscow University, 13 Universitetsky pr., ...

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• Zhanna F. Rodionova
• Родионова Жанна Федоровна
• Пугачева Светлана Георгиевна

Uranus: around the Sun, "lying in the side". Uranus . ... Mass . ... The period of rotation . ... The average distance from the Sun . ... Excentricity of the orbit . ... Uranus is the seventh from the Sun great planet of the Solar system. ... The theoretical model of Uranus structure is following its upper layer is a gasoliquid shell under which is an icy cloak (the water and ammonia ice) then comes the core of the solid soils. The cloak and the core mass is about 85-90% of all Uranus mass. ...

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• saturne
• smalltelae
• jupitere

My research efforts have focused on three areas which are: . More than 200 extrasolar planets have been discovered around relatively nearby stars, primarily through the Doppler line shifts owing to the reflex motions of their host stars, and more recently through transits of some planets across the face of the host stars. ... Gravitational microlensing provides a novel technique to look for planets around lens stars, and this is the only technique currently capable of detecting Earth-mass planets. ...

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• An Elliptical Ring Nebulosity Around Serpens/SVS 20: Circumbinary Disk or
• HST this week: 296
• HST this week: 289

... Scientists from G. I. Budker Institute of Nuclear Physics- Syberian Branch of the Russian Academy of Science, Novosibirsk State University, Novosibirsk State Technical University, Samara State Aerospace University (SSAU) and Image Processing Systems Institute (IPSI) of the Russian Academy of Science, became the first people in the world obtained terahertz non-diffractive twisted Bessel beams and used them for the first time the formation of surface electromagnetic waves on the metal surface. ...

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• SSAU scientists will 'teach' nanosatellites to manoeuvre in orbit
• Frolov Vladimir Alekseevich
• Efimova Ekaterina Andreevna

OBSERVATIONS OF COORBITAL SATELLITES OF SATURN Emel'yanov N., Varfolomeev M. Sternberg State Astronomical Institute, Moscow, e-mail : emelia@sai.msu.ru Institut de MИcanique CИleste et de Calcul des иphИmИrides, Paris, e-mail : emelia@imcce.fr Abstract. To improve the orbital parameters and masses of coorbital satellites of Saturn, Janus and Epimetheus, new observations of these satellites are necessary. ... IN: Saturn. ... New observations of Saturn's coorbital satellites" - Icarus. ...

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• Anna Mel'nik - Publications