Pr0211 c,[1] sometimes written as Pr 0211 c, is a gas giant exoplanet orbiting around the Sun-like star Pr0211, a G-type main sequence star. Pr0211 c and two other planets, Pr0211 b and Pr0201 b are notable for being one of the first exoplanets discovered in the Beehive cluster located in the constellation Cancer, and for being the first multi-planet system discovered in an open cluster.[1] Its host star, Pr0211, is rotationally variable and has a rotation period of 7.97 days.[2]
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Discovery | |
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Discovered by | Sam Quinn |
Discovery site | University of Georgia |
Discovery date | 18 February 2016 |
Detection method | Radial Velocity |
Orbital characteristics | |
Semi-major axis | 5.8 ( -1.4 +2.9 ) AU |
Eccentricity | 0.7 (± 0.1)[1] |
Orbital period (sidereal) | 5300.0 ( -1800.0 +4450.0 ) (Julian Days)[1] d |
Star | Pr0211 |
Physical characteristics | |
Mass | 7.95 (± 0.25)[1] MJ |
Pr0211 c was discovered in 2016 by Luca Malavolta[1][3] and his colleagues while observing its host star with the HARPS-N spectrograph on the 3.6 metres (12 ft; 3.9 yd) Italian Telescopio Nazionale Galileo (TNG) in La Palma, and the Tillinghast Reflector Echelle Spectrograph (TRES) mounted at the 1.5 metres (4.9 ft; 1.6 yd) telescope at the University of Georgia in the United States.
2016 in space | ||
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Selected NEOs |
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Exoplanets ![]() |
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Novae |
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Space exploration |
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