Exoplanet CatalogThe GJ 3998 planetary system
Distance (light-years)59.2
Spectral typeM1
Temperature (K)3,726
Mass (Sun = 1)0.52
| Planet | Method | Year | Orbital period (days) | Radius (Earth = 1) | Mass (Earth = 1) | Equilibrium temperature (K) |
|---|---|---|---|---|---|---|
| GJ 3998 b | Radial Velocity | 2016 | 2.65 | 1.39 | 2.5 | 734 |
| GJ 3998 c | Radial Velocity | 2016 | 13.73 | 2.50 | 6.8 | 423 |
| GJ 3998 d | Radial Velocity | 2025 | 41.78 | 2.34 | 6.1 | 292 |
Values are the archive’s composite parameters and may combine several publications; mass may be a minimum mass (M·sin i). “–” means no value in the archive.
The star
| Spectral type | Temperature (K) | Radius (Sun = 1) | Mass (Sun = 1) |
|---|---|---|---|
| M1 | 3,726 | 0.50 | 0.52 |
About this page
GJ 3998 is about 59.2 light-years from the Sun and has 3 confirmed planet(s).