... 2009 June 3 . VB 10: A Large Planet Orbiting a Small Star . Illustration 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 . ...

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• APOD: 2005 June 14 - Gliese 876 System Includes Large Terrestrial Planet
• SmallBodies in the Solar System
• APOD: 2006 September 18 - Eris: The Largest Known Dwarf Planet

... Planets . ... Earth Satellites . ... The newly discovered ?mega-Earth? ... Its sibling, the lava world Kepler-10b, is in the background (the two planets? proximity is grossly exaggerated) .€а Kepler-10c has a diameter of about 29 000 km, 2.3 times as large as Earth, and weighs 17 times as much. ... The first mega-earth to be discovered is Kepler-10c which orbits a star lying about 560 light years from the Sun in the constellation Draco. ... Astronomers Find a New Type of Planet: The ?Mega-Earth? ...

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• Kepler-11: a strange and crowded planetary system | Astronotes
• Most Earth-like exoplanet found by ESO | Astronotes
• Kepler 36b and c: Too Close for Comfort | Astronotes

... 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. ...

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• Астронет > VB 10: A Large Planet Orbiting a Small Star
• Gliese 876 System Includes Large Terrestrial Planet
• Small Worlds Ceres and Vesta

... Armagh Observatory, College Hill, Armagh BT61 9DG, +44 (0)28 3752 2928 . An artistтАЩs impression of the binary UZ For and planet . ... A team of astronomers, including Dr Gavin Ramsay of the Armagh Observatory, has found evidence that suggests the existence of an extraordinary planetary system. Two giant planets appear to be revolving at some distance around a compact, interacting stellar binary known as UZ For, which comprises two small stars orbiting very closely one about the other. ...

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• Mutual Events of the Uranian Satellites
• AN EXCESS OF EARTHS
• Irregular Satellite Research

... There has been a heated public discussion in the past few years about whether our ninth planet is really deserving of the name. Since Pluto orbits a star, and is much less luminous, it certainly satisfies the definition we have above. The problem is actually not with Pluto, but with a very large number of other bodies in our Solar System which also satisfy this definition, but which are not called planets. Perhaps the most notable of these is Ceres, the largest asteroid. ... Planet . ...

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• ASP: Miranda: A Jigsaw Puzzle World
• ASP: What Have We Learned About Halley's Comet?
• ASP: Lord of the Rings

... Funnily, astronomers have named one of the dwarf galaxies that orbits our galaxy the Large Magellanic Cloud! ... This is a cloud of gas and dust, which is called a Super-bubble . ... Fierce winds from massive stars and the explosions of dying stars have hollowed-out the centre of the cloud, leaving just a ring of gas and dust. ... If enough gas and dust particles clump together in one region of the Super-bubble, a new star is created, as stars are just big balls of gas and dust! ...

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• The Very Large Telescope Project
• ESO - The European ELT
• Animation of the planetary system around Sun-like star HD 10180 (artistтАЩs

... 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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• The Galaxy Gallery: Messier Objects
• Formation of the Earth

... Neptune is smaller in diameter but larger in mass than Uranus . ... N eptune has been visited by only one spacecraft, Voyager 2 on Aug 25 1989. ... A t the time of the Voyager encounter, Neptune's most prominent feature was the Great Dark Spot (left) in the southern hemisphere. ... Neptune's winds blew the Great Dark Spot westward at 300 meters/second (700 mph). ... L ike Uranus and Jupiter, Neptune's rings are very dark but their composition is unknown. ... Neptune's Ring System . ... Uranus .. ...

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• SmallBodies in the Solar System
• Solar System Extrema
• Uranus

Geotimes -- November 2005 -- Two more moons for "planet" Pluto http://www.geotimes.org/nov05/WebExtra110305.html Web Extra Thursday, November 3, 2005 Two more moons for Pluto When the New Horizons spacecraft finally reaches Pluto in July 2015, researchers will have more objects to study than previously thought. In addition to Pluto's confirmed moon Charon, astronomers have detected two more orbiting celestial bodies, which could help reveal how the planet and moon system formed. ...

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• http://www.stsci.edu/~mutchler/documents/Pluto_AstroMag_rings.pdf
• http://www.stsci.edu/~mperrin/papers/insearch.html
• http://www.stsci.edu/stsci/meetings/planets/abs/prog3.html

... Neptune is smaller in diameter but larger in mass than Uranus . ... An international dispute arose between the English and French (though not, apparently between Adams and Le Verrier personally) over priority and the right to name the new planet; they are now jointly credited with Neptune's discovery. ... A t the time of the Voyager encounter, Neptune's most prominent feature was the Great Dark Spot (left) in the southern hemisphere. ... more Neptune images . ... What happened to the Great Dark Spot...

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• The Planet Jupiter
• The Motion of Comets
• APOD: 2000 February 13 - Southwest Mercury

... Many massive planets contrary to Jupiter have large eccentricities of orbits. ... Another problem is to study the conditions and boundaries of stable, regular motions of small mass planet in systems having `Jupiter' with large orbital eccentricity as well as properties of regular, stable, and irregular, chaotic motions. ... The regular eccentricity evolution described above demonstrates that stable quasi--circular orbits of small planet are unusual. ...

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• http://www.ipa.nw.ru/conference/2002/sovet/PS/IPATOV1.PS
• http://www.ipa.nw.ru/conference/2002/sovet/PS/BYKOVA2.PS

The small solids. Asteroids or the small planetes . ... The comets. ... Ceneca the Young.Procuring about the nature.63 y. The comet is a celestial body of a great size, but a rare one... transparent. Sometimes there seen a core and the medium forms a kind of a tail, beard or dishevelled looks. ... The core is an ice body - conglomeration of frosted gas and dust. ... The comet state is variable: ones have the con tails, others the dust tails, and the third have both. ... Meteors and meteorites. ...

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• merkurie
• antichnoste
• venerae

The artist's concept depicts NASA's Kepler misssion's smallest habitable zone planet. Seen in the foreground is Kepler-62f, a super-Earth-sized planet in the habitable zone of a star smaller and cooler than the Sun. Kepler-62f orbits it's host star every 267 days and is roughly 40 percent larger than Earth in size. The small shining object seen to the right of Kepler-62f is Kepler-62e. Orbiting on the inner edge of the habitable zone, Kepler-62e is roughly 60 percent larger than Earth. ...

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• http://www.astronomy.com/sitefiles/resources/image.aspx?item=%7B73ED2BA4-C4D5-41A9-B0E7-8705FB0A6312%7D
• Smallest exoplanet found | Astronomy.com
• Astronomy Magazine - Interactive Star Charts, Planets, Meteors, Comets,

... 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 Path of the Sun, the Ecliptic
• Kepler's First Law--Lesson Plan #20
• The Scale of the Solar System

... This glossary is not meant to be an exhaustive list of techno-definitions. ... Is there a term you don't see here? ... Do you know how to pronounce the CONSTELLATIONS , STARS , or the PLANETS and their MOONS ? ... First Law - the orbit of each planet is an ellipse with the sun at a focus . ... LIGHT BUCKET: A common slang term for a large apertures . ... LIGHT POLLUTION: The illumination of the night sky caused by artificial light sources on the ground (streetlights, billboards, etc.) ...

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• Astronomical Glossary - G thru I
• Astronomical Glossary - N thru R

... ATNF Home . ... About ATNF overview . ... Australia Telescope Steering Committee . ... Parkes radio telescope . ... HI in Elliptical Galaxies . ... Next Section: HI in small elliptical . ... Several properties of elliptical galaxies appear to change at an absolute magnitude around M Large elliptical galaxies (defined here as those with M brighter than -19) are usually dominated by an old stellar population (e.g. Bressan et al. 1996), and have most of their gas in a hot X-ray corona (Forman et al. ...

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• Information on planets
• eclipsing_binary_pics.html
• Handling large spectral bandwidths

Class 1 Introduction, Background History of Modern Astronomy The Night Sky, Eclipses and the Seasons Kepler's Laws Newtonian Gravity General Relativity Matter and Light Telescopes Class 2 Solar System Characteristics Formation Exosolar Planets Class 3 Stars The Sun Stellar Evolution of Low and High Mass Stars Deaths of Stars Exotic Stars Class 4 Galaxies Galaxy Classification Formation of Galaxies Galactic Evolution ... So far, one planet has been studied by this method. ...

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• This Monthт??s Sky т?? March 2016 ? Amateur Astronomers Association of New York
• Lecture Series 2011-2012 ? тАЬSearching for Earthlike WorldsтАЭ ? Debra Fischer

God Science Forum Message . ... God and Science | ... Pluto Is Not A Planet, But A Moon Of Neptune. ... Pluto Is Not a Planet, but a Moon of Neptune . 60 years ago, at 1947, the late Mohammed Ali Hassan Al-Hilly, said in his book: (The Universe and the Quran), that Pluto is not a planet but a moon of Neptune. ... He said: " Astronomers, however, think that Pluto is a planet, but I say it is merely a moon of Neptune, and actually it is not a planet. ... www.astronomy.net . About Astronomy Net | ...

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• Observational Stellar Astronomy - an Astronomy Net Article
• You Can Make Stellar Images Brighter - an Astronomy Net Article
• Total Lunar Eclipse May 15-16 - an Astronomy Net Observation_reports Forum

... Cloud" CALDWELL 14 MESSIER 34 MESSIER 45 CALDWELL 41 DEEPSKY "Large Mag. Cloud MESSIER 79 MESSIER 38 MESSIER 42 MESSIER 36 MESSIER 37 MESSIER 35 SAO 234480 MESSIER 41 MESSIER 44 CALDWELL 53 CALDWELL 92 NGC 3377 CALDWELL 91 NGC 4261 MESSIER 68 CONSTELLATION Coma Berenices CALDWELL 99 CALDWELL 94 CALDWELL 77 CALDWELL 80 MESSIER 51 MESSIER 04 MESSIER 13 MESSIER 92 MESSIER 06 MESSIER 07 MESSIER 08 ... This is" "short for 'Quasi stellar objects.' ...

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Orbit . ... The orbit of the RadioAstron provides four types of study: . rough images of radio sources with ultra-high angular resolution, using all baselines up to the radius of the apogee, that is much larger than Earth diameter; . ... high quality imaging of radio sources, with moderate resolution, by observing either with small projected base lines Earth-spacecraft, i.e. close to the orbital plane, or near the perigee. ... high accuracy orbit determination. ... Space Radio Telescope . ...

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• MEMORANDUM