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 | |
Discovery | |
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Discovered by | C. Lovis et al.[1] |
Discovery date | May 18, 2006 |
Detection method | Radial velocity |
Orbital characteristics | |
Semi-major axis | 0.186 AU (27,800,000 km) |
Eccentricity | 0.13 ± 0.06 |
Orbital period (sidereal) | 31.56 ± 0.04 d |
Time of periastron | 2,453,469.6 ± 2.8 |
Argument of periastron | 221 ± 35 |
Semi-amplitude | 2.66 ± 0.16 |
Star | HD 69830 |
Physical characteristics | |
Temperature | ~522 K |
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Stars | |
Planets | |
Misc. |