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==Planetary system== |
==Planetary system== |
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| − | On September 8th, 2008, it was announced that astronomer David Lafreniere and collaborators used the Gemini |
+ | On September 8th, 2008, it was announced that astronomer David Lafreniere and collaborators used the Gemini Observatory to take pictures of the star, which appeared to show a planet. The apparent planet is very large - about fourteen times the mass of [[Jupiter]], orbiting the star at a distance of 330 AU (roughly 31 billion miles). The orbital status of the companion planet was confirmed in a paper submitted on June 15, 2010 to the Astrophysical Journal. This would make it the smallest known [[extrasolar planet]] orbiting its star at such a distance. |
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|[[{{PAGENAME}} b|b]] |
|[[{{PAGENAME}} b|b]] |
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+ | |14 Jupiter mass |
|330 AU |
|330 AU |
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|N/A |
|N/A |
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Latest revision as of 22:49, 21 March 2018
1RXS1609 (also known as 1RXS J160929.1−210524) is a pre-main-sequence star located approximately 470 light years away from Earth, in the constellation of Scorpius.
the star was identified as a member of the Upper Scorpius subgroup of the Scorpius-Centaurus Association by Thomas Prebisch and coauthors in 1998, and originally was assigned an age of about 5 million years old based on its group membership, though more recent analysis of the ages of the stars in the Upper Scoripus indicate that the star is approximately 11 million years old.
Planetary system[]
On September 8th, 2008, it was announced that astronomer David Lafreniere and collaborators used the Gemini Observatory to take pictures of the star, which appeared to show a planet. The apparent planet is very large - about fourteen times the mass of Jupiter, orbiting the star at a distance of 330 AU (roughly 31 billion miles). The orbital status of the companion planet was confirmed in a paper submitted on June 15, 2010 to the Astrophysical Journal. This would make it the smallest known extrasolar planet orbiting its star at such a distance.
| Planet | Mass | Semimajor axis | Orbital period (days) | Eccentricity | Inclination | Radius |
|---|---|---|---|---|---|---|
| b | 14 Jupiter mass | 330 AU | N/A | N/A | N/A | N/A |