HD 69830 c

HD 69830 c is an exoplanet orbiting HD 69830. It is the second-closest planet in its system and likely to be a rocky planet, not a gas giant.[1] If it had formed as a gas giant, it would have stayed that way.[2]

HD 69830 c
HD 69830 c
Discovery
Discovered byC. Lovis et al.[1]
Discovery dateMay 18, 2006
Radial velocity
Orbital characteristics
0.186 AU (27,800,000 km)
Eccentricity0.13 ± 0.06
31.56 ± 0.04 d
2,453,469.6 ± 2.8
221 ± 35
Semi-amplitude2.66 ± 0.16
StarHD 69830
Physical characteristics
Temperature~522 K

    References

    1. Lovis, Christophe; et al. (2006). "An extrasolar planetary system with three Neptune-mass planets" (PDF). Nature. 441 (7091): 305–309. arXiv:astro-ph/0703024. Bibcode:2006Natur.441..305L. doi:10.1038/nature04828. PMID 16710412.
    2. H. Lammer; et al. (2007). "The impact of nonthermal loss processes on planet masses from Neptunes to Jupiters" (PDF). Geophysical Research Abstracts. 9 (7850).


    This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.