... 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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• All about Jupiter

Astropark Home . Solar System . ... Planets . ... A year is the time that it takes for a planet to go around the Sun. ... As a result, an Earth year is very different in length from a year on Saturn or any other planet. ... But on this scale, most of the planets are too small to see, so their size has been increased by 200 times. ... The Astropark's red gravel represents the asteroid belt – thousands of smaller bodies which range in size from pebbles up to small planets hundreds of miles across. ...

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• New Jupiter Moon
• Extrasolar Planetary Systems: More Like Ours - by David Perez-Suarez, Armagh
• Armagh Astropark

Discover the cosmos! ... 2002 June 14 . 55 Cancri: Familiar Planet Discovered . ... The discovery of a Jupiter -like planet in a Jupiter-like orbit around nearby Sun -like star 55 Cancri , announced yesterday, gives a new indication that planetary systems similar to our Solar System likely exist elsewhere. The planet, discovered by G. Marcy ( UC Berkeley ) and collaborators, is one of two new planets found around 55 Cancri -- in 1997 a Jupiter-massed planet was found orbiting very close in. ...

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• GALILEO READY FOR CLOSE FLYBY OF JUPITER'S BIGGEST MOON
• Galileo Status Report
• APOD: 2000 November 5 - Jupiter Swallows Comet Shoemaker Levy 9

... 55 Cancri: Familiar Planet Discovered . ... The discovery of a Jupiter -like planet in a Jupiter-like orbit around nearby Sun-like star 55 Cancri , announced yesterday, gives a new indication that planetary systems similar to our Solar System likely exist elsewhere. The planet, discovered by G. Marcy ( UC Berkeley ) and collaborators, is one of two new planets found around 55 Cancri -- in 1997 a Jupiter-massed planet was found orbiting very close in. ... 30 1995 1996 1997 1998 . ...

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• XWare > APOD

On the inclination of planetary orbits! Caroline Terquem! ... Planets on inclined orbits Higher inclinations for planets around stars with Teff>6250K? Planet formation, Hot Jupiters and misalignments 1. If planets form by the core accretion scenario and migrate in: Hot Jupiters But no eccentricity and no misalignment (if the disc is in the star's equatorial plane) With further planet/planet scattering and/or Kozai cycles: Eccentricity and misalignment But companions required.. ...

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• http://www.mrao.cam.ac.uk/wp-content/uploads/2014/04/AMustill.pdf
• Astrophysics Group Research and Instrumentation

Astronotes Armagh Planetarium's Stellar Blog! ... Planets . ... Monthly Sky Notes . ... October . ... By admin October 8, 2010 Posted in: Monthly Sky Notes . A giant from close up: an image made using data from the Cassini probe which flew past Jupiter in 2000. ... As it is so far from us, it takes JupiterтАЩs light a significant time to reach us тАУso when you see Jupiter tonight you are seeing it as it was 35€а minutes in the past. ... Posted October 12, 2010 at 11:15 PM . ... Astronotes . ...

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• Kepler-10c: the First Mega-Earth | Astronotes
• Kepler-11: a strange and crowded planetary system | Astronotes
• Rings Around an Asteroid | Astronotes

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 . ...

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... 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/BENEST.PS
• http://www.ipa.nw.ru/conference/2002/sovet/PS/IPATOV1.PS
• http://www.ipa.nw.ru/PAGE/FUNDAMENTAL/LSBSS/Ko_Che.pdf

Giant Jupiter. Jupiter . ... Jupiter has no solid surface that is why speaking about its dimensious point the radius of the upper border line of the clouds, where the presseru is about 10 KPa; radius of Jupiter on the equator is 71400 km. ... The Jupiter satellites. ... Nowadays 16 satellites of the Jupiter are known: Adrastea, Mitis, Amaltea , Phina,then 4 Galilei satellites: Io , Europe , Hanimed , Callisto , Leda, Aimalia, Zicitea, Elara, Ananke, Carme, Pasipe and Sinope. ... Jupiter's ring. ...

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• saturne
• Keplere
• venerae

... Bad Astronomy . Misconceptions . ... Bad Astronomy : The Moon only shows one face to us because it is not rotating. Better astronomy : The Moon only shows one face because it is rotating, once every time it revolves around the Earth. ... Place the Moon model on the table about 30 centimeters (one foot) away with the X facing the Earth model. ... You'll see that to keep the X facing the Earth model, you have to rotate the Moon model as it goes around the Earth model . ... 2008 Phil Plait. ...

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• Phil Plait's Bad Astronomy: Mad Science
• Phil Plait's Bad Astronomy: Bitesize Tour of the Solar System
• Phil Plait's Bad Astronomy: Bitesize Astronomy

... As the list of extra-solar planets orbiting sun-like stars ( exoplanets.org/planet_table.shtml ) continues to grow, more and more members of multiple-planet systems ( exoplanets.org/mult.shtml ) are being discovered. ... A planet doesn't actually orbit a star; rather both orbit a point between the two objects. ... Figure 3-Two planets in orbit around 47-Ursa Majoris produce more complex variations in the Doppler-shift data. ... Could these be examples of "The Music of the NEW Spheres"? ...

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• ASP: A Flag for Mars
• ASP: Up, Up, and Away
• ASP: A Good Definition of the Word "Planet": Mission Impossible?

... The study of extra solar planets will be one of the most important areas of research in astronomy in this century. ... The first planets outside the solar system were found in 1992 around the millisecond pulsar PSR B1257+12 by Alex Wolszczan at the Arecibo Observatory . ... Three space missions based on this principle (MOST, COROT and Kepler ) have already been launched or approved, and have the last one at least has the potential to find Earth-sized planets. ... SIM ( NASA ) is one of such missions...

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... Tonight's Sky . ... DISK т?? ... Sky this Month . ... Star Atlas . ... A planet is forming in an Earth-like orbit around a young star . New images reveal never-before-seen details in the planet-forming disk around a nearby Sun-like star, including a tantalizing gap at the same distance from the star as Earth is from the Sun. ... ALMA image of the planet-forming disk around the young Sun-like star TW Hydrae. ... Disks of dust and gas that surround young stars are the formation sites of planets. ...

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• Everything around us is spinning: particles, planets, stars, galaxies. Why not
• Planets, orbits, and comets are somewhat round. Is there an underlying
• Would it be possible to find a moon around an extrasolar planet? If so, how? |

... Historical Data . Orbital Data . Physical Data . ... Sun . ... Jupiter . ... Saturn . ... William Herschel . ... William Cranch Bond . ... William Henry Pickering . Uranus . ... 1986 . Voyager 2 . ... William Lassell . ... J. Christy Key: Name Name of the planet or satellite. Orbits Sun or planet about which it orbits. ...

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• Galileo Crosses Boundary Into Jupiter's Environment
• The Discovery of the Galilean Satellites
• Jupiter's Moon Thebe

NASA's Galileo spacecraft radioed confirmation late this week that it has entered Jupiter's environment, crossing over the boundary from interplanetary space into the giant magnetic cocoon around Jupiter called the magnetosphere. ... On Thursday, December 7, Galileo's previously deployed atmospheric probe will plunge into Jupiter's cloud tops at 5:56 p.m. EST and descend into the giant planet on a parachute. ... Jupiter's magnetosphere is like a giant bubble around the planet. ...

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• Neptune
• Galileo to Jupiter
• Lagrangian Points

... Science User Portal . ... For the first time, astronomers have been able to directly follow the motion of an exoplanet as it moves from one side of its host star to the other. ... Only 12 million years old, or less than three-thousandths of the age of the Sun, Beta Pictoris is 75% more massive than our parent star. ... This research was presented in a paper to appear this week in Science Express (тАЬA Giant Planet Imaged in the disk of the Young Star Beta Pictoris,тАЭ by A.-M. Lagrange et al.) ...

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• Mario van den Ancker
• Orbits of the Planets | ESO
• High Resolution HST Images of Pluto and Charon (ESO Press Release 09/94)

... Central to this vision has been the idea that the way to discover new worlds around distant stars is by someday traveling there in person. ... I am a graduate student in astrophysics at UC Berkeley, home of one of the most successful planet searches presently underway. ... We can see the planets in our own solar system by reflected sunlight, but only at night when the sun?s glare does not obscure them. ... Planets are thought to form from a disk of gas and dust swirling around an infant star. ...

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• Producing an Unbiased Study for the Spheres of Influence of 1 Solar Mass Stars
• Research Interests
• ST ScI Preprint #1390

Общая Астрономическая Конференция > Форумы общей направленности > Непознанное, необъяснимое, загадочное > Planet 2003!! ... Просмотр полной версии : Planet 2003!! Denis . ... странник" приобретает скорость, равную почти 1000 км / с, у меня возник вопрос: . ... To Marc W. Buie (Lowell Observatory), 2000 CR105 was at first just another distant discovery among dozens found during his team's ongoing search for trans-Neptunian objects using 4-meter telescopes in Arizona and Chile. ...

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• Planet 2003!!! - Общая Астрономическая Конференция

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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• Finding Himalia, The Fifth Brightest Moon Of Jupiter - an Astronomy Net Article
• Astronomy articles, forums, listings, and other resources about Astronomy.
• Moon, Planets And Aurora, Oh My! - an Astronomy Net Article

... Spacecraft . ... To space by cannon? Finally, the deep space explorers --spacecraft which break away from the Earth's gravity . ... The "Luna" series of the USSR conducted 7 soft landing of unmanned probes, two of them with wheeled robotic "Lunokhods," and two of those missions returned samples to Earth. Others spacecraft have visited the major planets of the Solar system. ... The Mariner series have explored Venus and Mars--and Mariner 10 even reached Mercury, for three separate encounters! ...

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• Lagrangian Points
• Magnetospheres other than Ours
• The Path of the Sun, the Ecliptic