VB 10b: Difference between revisions
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#REDIRECT [[VB 10#Claims of a planetary system]] |
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{{Planetbox begin |
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| name = VB 10b |
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}} |
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{{Planetbox image |
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| image = 352344main A-VB10b art-516.jpg |
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| caption = An artist's impression of VB 10b<br>showing the relative size of its parent star. |
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}} |
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{{Planetbox star |
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| star = [[VB 10]] |
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| constell = [[Aquila (constellation)|Aquila]] |
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| RA = {{RA|19|16|57.62}} |
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| DEC = {{DEC|+05|09|02.2}} |
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| app_mag = 17.30 |
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| dist_ly = 19.85 |
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| dist_pc = 6.09 |
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| class = M8V |
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}} |
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{{Planetbox orbit |
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| semimajor = 0.360 ({{±|0.016|0.006}}) |
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| semimajor_mas = 59.1 |
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| periastron = |
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| apastron = |
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| eccentricity = <0.98 |
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| inclination = 96.9 ({{±|7.4|1.8}}) |
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| period = 271.56 ({{±|6.9|3}}) |
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| arg_peri = 38.7 ({{±|4.8|3.3}}) |
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| t_peri = |
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| semi-amp = |
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}} |
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{{Planetbox character |
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| mass = 6.4 ({{±|2.6|3.1}}) |
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| radius = |
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| temperature = |
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}} |
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{{Planetbox discovery |
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| discovery_date = May 2009 |
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| discoverers = Pravdo and Shaklan of [[JPL]] |
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| discovery_method = [[Methods_of_detecting_extrasolar_planets#Astrometry|Astrometry]] |
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| discovery_site = [[Pasadena, California]] |
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| discovery_status = Announced (Preprint) |
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}} |
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{{Planetbox catalog |
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| names = Gliese 752 Bb |
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}} |
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{{Planetbox reference |
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| star = VB+10 |
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| planet = b |
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}} |
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{{Planetbox end}} |
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| ⚫ | |||
In May of 2009 astronomers from [[NASA|NASA's]] [[Jet Propulsion Laboratory]], [[Pasadena, California]] announced the [[Methods_of_detecting_extrasolar_planets#Astrometry|astrometric discovery]] of a planet, '''VB 10b''', orbiting a nearby [[red dwarf]], using the {{convert|200|in|m|abbr=on}} [[Hale telescope]] at the [[Palomar Observatory]]. If confirmed, the [[extrasolar planet]] will be the first discovered using this method, and the star, [[VB 10]], will be the least massive to known to host a planet.<ref name="disc">{{cite journal |
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| title = An Ultracool Star's Candidate Planet |
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| url = http://steps.jpl.nasa.gov/links/docs/pravdoshaklan09vb10b.pdf |
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| year = 2009 |
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| journal = Submitted to the [[Astrophysical Journal]] |
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| last1 = Pravdo ''et al.'' |
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| accessdate = 2009-05-30}}</ref><ref name="announce">{{cite web |
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| title=Planet-Hunting Method Succeeds at Last |
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| url=http://www.nasa.gov/topics/universe/features/exoplanet-20090528.html |
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| work=NASA NEWS, NEWS RELEASE: 2009-090 |
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| accessdate=2009-05-28}}</ref> |
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VB 10b is reported to be a [[gas giant]] orbiting the star [[VB 10]] in the [[constellation]] of [[Aquila (constellation)|Aquila]]. It is reported to be approximately six times the mass of [[Jupiter]] and is about 20 [[light years]] away from Earth.<ref name="announce" /><ref>{{cite news|url=http://www.newscientist.com/article/dn17208-exoplanet-found-by-measuring-stars-sideways-shift.html|title=Exoplanet found by measuring star's sideways shift |last= McKee|first=Maggie |date=28 May 2009|publisher=New Scientist}}</ref> |
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This planetary system is also unique in the ratio of the mass of the planet to the mass of the star. Up to 10% of the mass of this entire star-planet system could be in the planet.<ref name="disc"/> |
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==Past claims based on astrometry== |
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{{main|Methods of detecting extrasolar planets#Astrometry|l1=Astrometry as an extrasolar planet detection method}} |
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VB 10b is not the first extrasolar planet claimed to be found by astrometry. In 1969 [[Peter Van de Kamp]] claimed that a planet was orbiting [[Barnard's Star]], and in 1996 a claim of planets orbiting the nearby star [[Lalande 21185]] appeared in the popular press.<ref>{{cite news|title=Data Seem to Show a Solar System Nearly in the Neighborhood|publisher=The New York Times|author=John Wilford|date=1996-06-12|accessdate=2009-05-29|page=1|url=http://www.nytimes.com/1996/06/12/us/data-seem-to-show-a-solar-system-nearly-in-the-neighborhood.html}}</ref> Subsequent analysis and further observations of those stars showed both claims to be erroneous.<ref name="sky">{{cite web |
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| title=Astronomers Pioneer New Method for Finding Exoplanets |
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| url=http://www.skyandtelescope.com/news/46462532.html |
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| publisher=[[Sky and Telescope]] |
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| accessdate=2009-05-29 |
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}}</ref> |
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==References== |
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{{reflist}} |
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[[Category:Aquila constellation]] |
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| ⚫ | |||
[[Category:Exoplanets discovered in 2009]] |
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[[Category:Gas giant planets]] |
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{{Sky|19|16|58|+|05|09|02|19.85}} |
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{{Extrasolar-planet-stub}} |
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[[fr:VB 10b]] |
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[[fi:VB 10b]] |
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Latest revision as of 17:18, 17 January 2021
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