Astronomy:HD 102272 b

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HD 102272 b
Discovery
Discovered byNiedzielski et al.
Discovery siteMcDonald Observatory, United States
Discovery date18 June 2008
Radial velocity
Orbital characteristics
0.614 ± 0.001 AU (91,850,000 ± 150,000 km)[1]
Eccentricity0.05 ± 0.04[1]
Orbital period127.58 ± 0.30[1] d
astron|astron|helion}}2452146 ± 64[1]
118 ± 58[1]
Semi-amplitude155.5 ± 5.6[1]
StarHD 102272
Physical characteristics
Mass>5.9 ± 0.2[1] |♃|J}}}}}}


HD 102272 b is an extrasolar planet approximately 1,200 light-years away in the constellation of Leo. The planet was discovered orbiting the K-type giant star HD 102272 in 2008. The planet was discovered by the radial velocity method, using the Hobby-Eberly Telescope. Another planet, HD 102272 c, was also discovered orbiting the same star. The discovery was announced in June 2008. HD 102272 b orbits at an average of 0.614 astronomical units away from its star, with a mass at least 5.9 ± 0.2 times that of Jupiter.[1]

See also

References

  1. ↑ 1.0 1.1 1.2 1.3 1.4 1.5 1.6 1.7 Niedzielski, A. et al. (2009). "A Planet in a 0.6 AU Orbit Around the K0 Giant HD 102272". The Astrophysical Journal 693 (1): 276–280. doi:10.1088/0004-637X/693/1/276. Bibcode: 2009ApJ...693..276N. 

External links

Coordinates: Sky map 11h 46m 23.5351s, +14° 07′ 26.350″




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