The HD 11977 system contains 1 exoplanet. It is located 221.57 light years away from the solar system.
| Mass | 1.91 solar masses |
| Radius | 10.09 solar radiae |
| Temperature | 4970 kelvin |
| Stellar Metallicity | -0.21 decimal exponent |
| Age | 1.2 billion years |
At more than 50 Earth masses, HD 11977 b is a gas giant, a planet whose mass is mostly made up of hydrogen and helium, like Jupiter and Saturn.
| Mass | 2080.000 Earth masses |
| Density | 5.580 grams per cubic centimeter |
| Radius | 12.700 Earth radiae |
| Semi-major Axis | 1.93 AU |
| Eccentricity | 0.4 |
| Orbital Period | 711.000 days |
| Discovery Method | Radial Velocity |
| Discovery Facility | La Silla Observatory |
| Discovery Telescope | Multiple Telescopes |
| Discovery Instrument | FEROS Spectrograph |
| Discovery Date | 2005-07 |
| Reference | Setiawan et al. 2005 |