The HD 99492 system contains 1 exoplanet. It is located 59.37 light years away from the solar system.
Mass | 0.48 solar masses |
Radius | 0.83 solar radiae |
Temperature | 4815 kelvin |
Stellar Metallicity | 0.24 decimal exponent |
Age | 4.8 billion years |
At more than 10 Earth masses, HD 99492 b is an ice giant, a planet that is made up mostly of volatiles like water, amonia and methane, and enveloped by a dense hydrogen and helium atmosphere, much like Uranus and Neptune.
Mass | 22.248 Earth masses |
Density | 0.966 grams per cubic centimeter |
Radius | 5.020 Earth radiae |
Semi-major Axis | 0.12 AU |
Eccentricity | 0.25 |
Orbital Period | 17.043 days |
Discovery Method | Radial Velocity |
Discovery Facility | W. M. Keck Observatory |
Discovery Telescope | 10 m Keck I Telescope |
Discovery Instrument | HIRES Spectrometer |
Discovery Date | 2005-01 |
Reference | Marcy et al. 2005 |