The HD 176986 system contains 2 exoplanets. It is located 90.62 light years away from the solar system.
| Mass | 0.79 solar masses |
| Radius | 0.78 solar radiae |
| Temperature | 4931 kelvin |
| Stellar Metallicity | 0.03 decimal exponent |
| Age | 4.3 billion years |
At more than 10 Earth masses, HD 176986 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 | 5.740 Earth masses |
| Density | 2.730 grams per cubic centimeter |
| Radius | 2.260 Earth radiae |
| Semi-major Axis | 0.06296 AU |
| Eccentricity | 0.066 |
| Orbital Period | 6.490 days |
| Discovery Method | Radial Velocity |
| Discovery Facility | Multiple Observatories |
| Discovery Telescope | Multiple Telescopes |
| Discovery Instrument | Multiple Instruments |
| Discovery Date | 2018-04 |
| Reference | Suárez Mascareño et al. 2018 |
At more than 10 Earth masses, HD 176986 c 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 | 9.180 Earth masses |
| Density | 1.910 grams per cubic centimeter |
| Radius | 2.980 Earth radiae |
| Semi-major Axis | 0.11878 AU |
| Eccentricity | 0.111 |
| Orbital Period | 16.819 days |
| Discovery Method | Radial Velocity |
| Discovery Facility | Multiple Observatories |
| Discovery Telescope | Multiple Telescopes |
| Discovery Instrument | Multiple Instruments |
| Discovery Date | 2018-04 |
| Reference | Suárez Mascareño et al. 2018 |