GJ 393 is 22.9 light-years from the Sun. The NASA Exoplanet Archive lists 1 planet around this M2.0 V star; the first was found in 2021 by radial velocity (Multiple Observatories).
Fly there in 3DGJ 393 b goes round its star every 7.03 days, 13 times as often as Mercury goes round the Sun.
| Spectral type | M2.0 V |
| Surface temperature | 3,579 K |
| Mass | 0.426 solar masses |
| Radius | 0.426 solar radii |
| Luminosity | 0.02687 times the Sun |
| Apparent magnitude | 9.65 |
| Distance from the Sun | 22.9 light-years (7.0 parsecs) |
| Position (J2000) | RA 157.2289°, Dec 0.8378° |
| Constellation | Sextans |
| Planet | Year | Orbit | Radius | Mass | Found |
|---|---|---|---|---|---|
| GJ 393 b | 7.03 days | 0.0540 AU | 1.17 R⊕ estimated | 1.71 M⊕ minimum | Radial Velocity, 2021 |
Values are the NASA Exoplanet Archive’s composite parameters. A radius marked estimated comes from a mass–radius relation; a mass marked minimum is M sin i. Planet sizes and colours in the 3D view are renderings: none of these worlds has been photographed as more than a point of light.