The GJ 3293 system contains 4 exoplanets. It is located 65.85 light years away from the solar system.
Mass | 0.42 solar masses |
Radius | 0.4 solar radiae |
Temperature | 3466 kelvin |
Stellar Metallicity | 0.02 decimal exponent |
Age | - billion years |
At more than 10 Earth masses, GJ 3293 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 | 23.540 Earth masses |
Density | 0.925 grams per cubic centimeter |
Radius | 5.190 Earth radiae |
Semi-major Axis | 0.14339 AU |
Eccentricity | 0.06 |
Orbital Period | 30.599 days |
Discovery Method | Radial Velocity |
Discovery Facility | La Silla Observatory |
Discovery Telescope | 3.6 m ESO Telescope |
Discovery Instrument | HARPS Spectrograph |
Discovery Date | 2015-03 |
Reference | Astudillo-Defru et al. 2015 |
At more than 10 Earth masses, GJ 3293 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 | 21.090 Earth masses |
Density | 1.000 grams per cubic centimeter |
Radius | 4.870 Earth radiae |
Semi-major Axis | 0.36175 AU |
Eccentricity | 0.11 |
Orbital Period | 122.620 days |
Discovery Method | Radial Velocity |
Discovery Facility | La Silla Observatory |
Discovery Telescope | 3.6 m ESO Telescope |
Discovery Instrument | HARPS Spectrograph |
Discovery Date | 2015-03 |
Reference | Astudillo-Defru et al. 2015 |
At more than 10 Earth masses, GJ 3293 d 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 | 0.19394 AU |
Eccentricity | 0.12 |
Orbital Period | 48.135 days |
Discovery Method | Radial Velocity |
Discovery Facility | La Silla Observatory |
Discovery Telescope | 3.6 m ESO Telescope |
Discovery Instrument | HARPS Spectrograph |
Discovery Date | 2017-06 |
Reference | Astudillo-Defru et al. 2017 |
At 3.282 Earth masses, GJ 3293 e 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 | 3.280 Earth masses |
Density | 4.160 grams per cubic centimeter |
Radius | 1.630 Earth radiae |
Semi-major Axis | 0.08208 AU |
Eccentricity | 0.21 |
Orbital Period | 13.254 days |
Discovery Method | Radial Velocity |
Discovery Facility | La Silla Observatory |
Discovery Telescope | 3.6 m ESO Telescope |
Discovery Instrument | HARPS Spectrograph |
Discovery Date | 2017-06 |
Reference | Astudillo-Defru et al. 2017 |