The GJ 887 system contains 2 exoplanets. It is located 10.73 light years away from the solar system.
| Mass | 0.49 solar masses |
| Radius | 0.47 solar radiae |
| Temperature | 3688 kelvin |
| Stellar Metallicity | -0.06 decimal exponent |
| Age | 2.88 billion years |
With a mass below 5 Earth masses, a density of 3.47, and a semi-major axis of 0.068 astronomical units, GJ 887 b could, potentially, be an ocean world - a planet with no dry land.
| Mass | 4.200 Earth masses |
| Density | 3.470 grams per cubic centimeter |
| Radius | 1.880 Earth radiae |
| Semi-major Axis | 0.068 AU |
| Eccentricity | 0 |
| Orbital Period | 9.262 days |
| Discovery Method | Radial Velocity |
| Discovery Facility | La Silla Observatory |
| Discovery Telescope | 3.6 m ESO Telescope |
| Discovery Instrument | HARPS Spectrograph |
| Discovery Date | 2020-06 |
| Reference | Jeffers et al. 2020 |
At more than 10 Earth masses, GJ 887 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 | 7.600 Earth masses |
| Density | 2.190 grams per cubic centimeter |
| Radius | 2.670 Earth radiae |
| Semi-major Axis | 0.12 AU |
| Eccentricity | NaN |
| Orbital Period | 21.789 days |
| Discovery Method | Radial Velocity |
| Discovery Facility | La Silla Observatory |
| Discovery Telescope | 3.6 m ESO Telescope |
| Discovery Instrument | HARPS Spectrograph |
| Discovery Date | 2020-06 |
| Reference | Jeffers et al. 2020 |