Astronomy:HD 108874 b
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Short description: Extrasolar planet in the constellation Coma Berenices
| Discovery | |
|---|---|
| Discovered by | Butler et al.[1] |
| Discovery site |  United States |
| Discovery date | June 30, 2003 |
| radial velocity | |
| Orbital characteristics | |
| 1.053 ± 0.061 AU (157,500,000 ± 9,100,000 km)[2] | |
| Eccentricity | 0.128 ± 0.022[2] |
| Orbital period | 394.48 ± 0.60[2] d |
| astron|astron|helion}} | 2,454,045 ± 49[2] |
| 219.4 ± 9.4[2] | |
| Semi-amplitude | 37.3 ± 1.1[2] |
| Star | HD 108874 |
| Physical characteristics | |
| Mass | >1.34 ± 0.11[2] |♃|J}}}}}} |
HD 108874 b is a gas giant announced in 2003.[1] The orbit lies in the star's habitable zone.[3] It is expected that any moons orbiting this planet are enriched in carbon, and are thus quite different from the silicate-rich bodies in the Solar System.[4]
The planet is possibly in a 4 : 1 orbital resonance with HD 108874 c.[5]
Discovery
The jovian planet HD 108874 b was discovered by the US-based team led by Paul Butler, Geoffrey Marcy, Steven Vogt, and Debra Fischer. A total of 20 radial velocity observations, obtained at the W. M. Keck Observatory in Hawaii between 1999 and 2002, were used to make the discovery.[1]
See also
References
- ↑ 1.0 1.1 1.2 Butler, R. Paul et al. (2003). "Seven New Keck Planets Orbiting G and K Dwarfs". The Astrophysical Journal 582 (1): 455–466. doi:10.1086/344570. Bibcode: 2003ApJ...582..455B.
- ↑ 2.0 2.1 2.2 2.3 2.4 2.5 2.6 Wright, J. T. et al. (2009). "Ten New and Updated Multi-planet Systems, and a Survey of Exoplanetary Systems". The Astrophysical Journal 693 (2): 1084–1099. doi:10.1088/0004-637X/693/2/1084. Bibcode: 2009ApJ...693.1084W.
- ↑ Schwarz, R.; Dvorak, R.; Pilat Lohinger, E.; Süli, Á.; Érdi, B. (2007). "Trojan planets in HD 108874?". Astronomy and Astrophysics 462 (3): 1165–1170. doi:10.1051/0004-6361:20066284. Bibcode: 2007A&A...462.1165S.
- ↑ Bond; Lauretta; O'Brien (2010). "The Diversity of Extrasolar Terrestrial Planets". Proceedings of the International Astronomical Union 5: 399. doi:10.1017/S1743921310001079. Bibcode: 2010IAUS..265..399B.
- ↑ Vogt, Steven S. et al. (2005). "Five New Multicomponent Planetary Systems". The Astrophysical Journal 632 (1): 638–658. doi:10.1086/432901. Bibcode: 2005ApJ...632..638V. https://authors.library.caltech.edu/36250/.
External links
Coordinates: 
12h 30m 26.8829s, +22° 52′ 47.383″
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