GJ 9404 is 77.9 light-years from the Sun. The NASA Exoplanet Archive lists 1 planet around this M2V star; the first was found in 2023 by radial velocity (Roque de los Muchachos Observatory).
Fly there in 3DGJ 9404 b goes round its star every 13.5 days, 7 times as often as Mercury goes round the Sun.
| Spectral type | M2V |
| Surface temperature | 3,811 K |
| Mass | 0.62 solar masses |
| Radius | 0.626041 solar radii |
| Luminosity | 0.1 times the Sun |
| Apparent magnitude | 10.62 |
| Distance from the Sun | 77.9 light-years (23.9 parsecs) |
| Position (J2000) | RA 184.8472°, Dec 28.3827° |
| Constellation | Coma Berenices |
| Planet | Year | Orbit | Radius | Mass | Found |
|---|---|---|---|---|---|
| GJ 9404 b | 13.5 days | 0.0943 AU | 3.48 R⊕ estimated | 11.9 M⊕ minimum | Radial Velocity, 2023 |
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.