The GJ 411 system contains 2 exoplanets. It is located 18.51 light years away from the solar system.
| Mass | 0.39 solar masses |
| Radius | 0.37 solar radiae |
| Temperature | 3719 kelvin |
| Stellar Metallicity | -0.362 decimal exponent |
| Age | 8.047 billion years |
At 2.690 Earth masses, GJ 411 b is a so called Super Earth. Super Earths could be terrestrial worlds like Earth, but they could also be ocean worlds or terrestrial worlds wrapped in a substantial atmosphere, in which case some refer to them as Mini Neptunes.
| Mass | 2.690 Earth masses |
| Density | 4.850 grams per cubic centimeter |
| Radius | 1.450 Earth radiae |
| Semi-major Axis | 0.07879 AU |
| Eccentricity | 0.063 |
| Orbital Period | 12.939 days |
| Discovery Method | Radial Velocity |
| Discovery Facility | Haute-Provence Observatory |
| Discovery Telescope | 1.93 m Telescope |
| Discovery Instrument | SOPHIE Spectrograph |
| Discovery Date | 2019-05 |
| Reference | Díaz et al. 2019 |
At more than 10 Earth masses, GJ 411 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 | 13.600 Earth masses |
| Density | 1.410 grams per cubic centimeter |
| Radius | 3.760 Earth radiae |
| Semi-major Axis | 2.94 AU |
| Eccentricity | 0.132 |
| Orbital Period | 2946.000 days |
| Discovery Method | Radial Velocity |
| Discovery Facility | Multiple Observatories |
| Discovery Telescope | Multiple Telescopes |
| Discovery Instrument | Multiple Instruments |
| Discovery Date | 2021-07 |
| Reference | Rosenthal et al. 2021 |