... SMIS : Space Monitoring Information Support laboratory . Russia's Weather : State Meteorological Center Weather Forecast . Space Weather service : ACE real time solar wind data and simple geomagnetic activity forecast. ... World Fire Web : Space Research Institute (IKI) node . Sputnik : Joint project of SRC Planeta, Rosgidromet and Space Research Institute (IKI) . ... Today's Space Weather : Presented by the Space Environment Center . ... Back to the Space Research Institute Home Page ...

Astronotes Armagh Planetarium's Stellar Blog! ... Solar System . ... Moon . ... Comets and Asteroids . ... What changed our view of Chariklo is the discovery of a ring system around it, the first such feature found around a Solar System body smaller than a gas giant planet. ... Almost certainly the rings were born when a collision with a smaller asteroid blasted millions of tonnes of debris off CharikloтАЩs surface. ... A ring system detected around the Centaur (10199) Chariklo (Braga-Rigas et al.) ...

... Check here for the latest news related to my research. Paper on the Discovery of ROXS 42Bb, a planetary mass companion 10.01.2013 I am co-author of a new paper accepted to ApJ Letters on the discovery of a co-moving companion to a tight, low mass binary in a star forming region. ... Paper on Fomalhaut Accepted to ApJ Letters 9.03.2013 I am co-author of a new paper submitted to ApJ Letters on re-analyzing deep archival Keck/NIRC2 data for additional companions to Fomalhaut. ...

... August 19, 1995 . Our Solar System from Voyager . ... Explanation: After taking its spectacular pictures of the outer solar system planets, Voyager 1 looked back at six planets from the inner solar system. ... Voyager 1 is only one of four human-made objects to leave our Solar System, the other three being Voyager 2, and Pioneer 10 and 11 . ... Astronomy Picture of the Day (TM) is created and copyrighted in 1995 by Robert Nemiroff and Jerry Bonnell who are solely responsible for its content. ...

... A Raging Storm System on Saturn . ... Credit Copyright: Cassini Imaging Team , SSI , JPL , ESA , NASA Explanation: It was one of the largest and longest lived storms ever recorded in our Solar System. First seen in late 2010, the above cloud formation in the northern hemisphere of Saturn started larger than the Earth and soon spread completely around the planet. The storm was tracked not only from Earth but from up close by the robotic Cassini spacecraft currently orbiting Saturn. ...

... Armagh Observatory, College Hill, Armagh BT61 9DG, +44 (0)28 3752 2928 . Armagh Observatory, 11th August 2015: Astronomers at the 29th International Astronomical Union General Assembly in Honolulu, Hawaii, have announced the discovery of the tenth transiting тАЬcircumbinaryтАЭ planet, a result that brings the number of such known planets into double digits. A circumbinary planet orbits two stars, and like the fictional planet тАЬTatooineтАЭ from Star Wars, the planet has two suns in its sky. ...

... Bad Astronomy . ... Bitesize Astronomy . ... Bad Astro Store . ... Slacker Astronomy . ... Keep Bad Astronomy close to your heart, and help make me filthy rich. ... Life Under the Moon . ... Seeing Jupiter's Moons . ... Time Zones and the Spherical Earth . A Companion to the Earth? ... December 19, 1999) . ... Big Moon, Little Moon . ... How Big is the Moon? ... 14, 2000) . ... 2008 Phil Plait. ... Subscribe to the Bad Astronomy Newsletter! Talk about Bad Astronomy on the BA Bulletin Board! ...

... Indeed, one alteration of orbits can be the outright ejection of a planet. When several big planets are orbiting a star under each other's influence, the system is inherently unstable. ... We know of no good reason why the smallest objects with fusion should have the same mass as the smallest objects that can form by themselves. ... 6) Mission Definition . ... I don't think this mission is impossible, and will suggest a definition in a future article in Mercury. ... Good luck! . ...

... ATNF Home . ... About ATNF overview . ... Australia Telescope Steering Committee . ... Parkes radio telescope . ... Digital systems . ... Visiting Parkes radio telescope . ... Parkes radio telescope webcam . ... б© HI gas in the Magellanic Clouds, . ... Thanks to all who attended the very interesting and productive "Elizabeth and Frederick White Conference on the Magellanic System". This meeting was held at the CSIRO Australia Telescope National Facility (ATNF) headquarters in Epping, July 16/17. ...

. Mars has become the center of intense interest since the Martian Meteorite results were announced. Currently there is a lively debate whether or not primitive life formed there or not.

The AstroGuide . ... AstroGuide | ... AstroGuide Listing . Login . See many more Astronomy Listings by: Category or Alphabet . Southern Stars provides professional software for the Amateur Astronomer. Platforms include Windows 3.1, Windows 95 and Macintosh System 7.x. Last Update August 28, 2005 . ... Web Site . ... Web . ... Unless otherwise specified, web site content Copyright 1994-2016 John Huggins All Rights Reserved . dbHTML," "AstroGuide," "ASTRONOMY.NET" & "VA.NET" . ...

The basic problems of the Laboratory are connected with researches of dynamics of minor planets and comets. ... THE ORBIT IMPROVEMENT of minor planets from optical and radar observations, . the utilization of minor planet observations for THE DETERMINATION OF ORIENTATION OF STAR CATALOGUES and DETERMINATION OF MASSES OF MINOR PLANETS BY DYNAMICAL METHOD, . THE ESTIMATION OF COLLISION PROBABILITY of minor planets with other bodies and with each other, . ...

... The 50 so-called exo-planets were discovered using a telescope that is found in South America. ... By looking at a star s wobble, astronomers can work out how many exo-planets are in orbit around it and how heavy they are. After studying all of the planets discovered with this telescope so far, astronomers have found that nearly half of stars that are similar to the Sun have at least one planet that is lighter than Saturn. ... But there are many, many more waiting to be found! ...

In ancient times the solar system was thought to be the whole Universe, so the study of planetary motions was cosmology. ... The planets other than the Moon and Sun generally move West to East through the stars, but occasionally stop and move in the opposite direction ( retrograde motion). In order to explain the retrograde motion of the planets, the geocentric model of the Solar System shown above puts the planets on small circles called epicycles . ...

... Helene 1980 P. Laques & J. Lecacheus Pandora 1980 S. Collins et. al. Prometheus 1980 S. Collins et. al. ... Puck 1985 Voyager 2 Belinda 1986 Voyager 2 Bianca 1986 Voyager 2 Cordelia 1986 Voyager 2 Cressida 1986 Voyager 2 Desdemona 1986 Voyager 2 Juliet 1986 Voyager 2 Ophelia 1986 Voyager 2 Portia 1986 Voyager 2 Rosalind 1986 Voyager 2 Despina 1989 Voyager 2 Galatea 1989 Voyager 2 Larissa 1989 Voyager 2 Naiad 1989 Voyager 2 Proteus 1989 Voyager 2 Thalassa 1989 Voyager 2 Pan 1990 Showalter . ...

... Click on an object in the solar system or choose from the list at left to learn more . The Arecibo Observatory planetary radar is the world's most powerful instrument for post-discovery characterization and orbital refinement of near-Earth objects. ... The Solar System Studies group is a department of the Arecibo Observatory, which is an NSF facility operated under cooperative agreement by SRI International, Universities Space Research Association (USRA), and la Universidad Metropolitana (UMET). ...

... 9a. Earth orbits Sun? . ... 10a. Scale of Solar Sys. ... If the mean distance of Earth from the Sun is 1 AU ("Astronomical Unit"), then that of Venus is 0.723 AU, of Mercury 0.387 AU and that of Mars is 1.524 AU. ... By noting (1) where on the Sun's disk is the crossing seen, (2) timing its duration at two far-apart points on Earth, and (3) comparing the times, one can calculate the distance to Venus and from it the scale of the solar system. ... One occurred in 1639--too early. ...

... J5: Radio and Radar Studies of the Solar System. ... Analogously, the key idea of the USSR (United Solar System Radar) concept would be the thousandfold increase in sensitivity over existing radar astronomy facilities, and besides, only the tenfold increase in transmitting power and collecting areas of transmitting and receiving antennas is necessary for this purpose. ... So, let us try to imagine the scientific impact, which would provide this United Solar System Radar. ... 3)  Asteroid's moons; . ...

. Dedicated to 40th anniversary of the . first artificial Earth satellite launch . Russian (Win) .

... Tonight's Sky . ... The Magazine . ... Observing . ... solar system . ... Observe the Solar System . ... How Many Planets Are in the Solar System? ... In this artwork showing the early solar system, an enormous dust disk stretches around the Sun and serves as a breeding ground for new planets as material clumps together. ... Get instant access to subscriber content on Astronomy.com! ... Receive news, sky-event information, observing tips, and more from Astronomy's weekly email newsletter. ...