Astronomy:HD 74156 c
From HandWiki
| Discovery | |
|---|---|
| Discovered by | Dominique Naef, Michel Mayor et al.[1] |
| Discovery site | California |
| Discovery date | Apr 4, 2001[2] |
| Radial velocity | |
| Orbital characteristics[3] | |
| 3.678+0.145 −0.159 astronomical unit|AU | |
| Eccentricity | 0.377±0.006 |
| Orbital period | 2,448.5 ± 4.2 days (6.704 ± 0.011 a) |
| Inclination | 120.162°+7.601° −66.225° |
| Longitude of ascending node | 210.652°+7.606° −42.039° |
| astron|astron|helion}} | 2448568.530+13.016 −11.742 |
| 271.934°+1.178° −1.505° | |
| Semi-amplitude | 113.940+0.974 −1.099 m/s |
| Star | HD 74156 |
| Physical characteristics[3] | |
| Mass | 8.665+1.385 −0.470 MJ |
HD 74156 c is an extrasolar planet with a minimum mass about eight times that of Jupiter orbiting the star HD 74156. It is most likely a gas giant. This planet was discovered by Dominique Naef and Michel Mayor in April 2001 together with the planet HD 74156 b.[2][1] In 2022, the inclination and true mass of HD 74156 c were measured via astrometry.[3]
References
- ↑ 1.0 1.1 Naef, Dominique; Mayor, Michel; Beuzit, Jean-Luc; Perrier, Christian; Queloz, Didier; Sivan, Jean-Pierre; Udry, Stéphane (2004). "The ELODIE survey for northern extra-solar planets. III. Three planetary candidates detected with ELODIE". Astronomy and Astrophysics 414 (1): 351–359. doi:10.1051/0004-6361:20034091. Bibcode: 2004A&A...414..351N. http://www.aanda.org/index.php?option=article&access=standard&Itemid=129&url=/articles/aa/pdf/2004/04/aa0091.pdf.
- ↑ 2.0 2.1 "Exoplanets: The Hunt Continues!" (Press release). Garching, Germany: European Southern Observatory. April 4, 2001. Retrieved December 27, 2012.
- ↑ 3.0 3.1 3.2 Feng, Fabo et al. (August 2022). "3D Selection of 167 Substellar Companions to Nearby Stars". The Astrophysical Journal Supplement Series 262 (21): 21. doi:10.3847/1538-4365/ac7e57. Bibcode: 2022ApJS..262...21F.
Coordinates: 
08h 42m 25.1222s, +04° 34′ 41.151″
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