GJ 3222 is 59.5 light-years from the Sun. The NASA Exoplanet Archive lists 1 planet around this K0V star; the first was found in 2022 by radial velocity (Multiple Observatories).
Fly there in 3DGJ 3222 b goes round its star every 10.7 days, 8 times as often as Mercury goes round the Sun.
GJ 3222 is one of 2 stars in its system: the other is drawn where the Washington Double Star Catalog measures it on the sky.
| Spectral type | K0V |
| Surface temperature | 5,257 K |
| Mass | 0.89 solar masses |
| Radius | 0.931389 solar radii |
| Luminosity | 0.5598 times the Sun |
| Apparent magnitude | 6.9 |
| Distance from the Sun | 59.5 light-years (18.2 parsecs) |
| Position (J2000) | RA 50.8972°, Dec -40.0762° |
| Constellation | Eridanus |
GJ 3222 B has no spectral type listed of magnitude 11, with a computed orbit. In 2024 it was 2.9″ from GJ 3222, at position angle 129° (Washington Double Star Catalog, 03236-4005 I 468): 52.9 AU on the sky at this distance. The true distance can only be larger. Its colour is estimated from its brightness.
| Planet | Year | Orbit | Radius | Mass | Found |
|---|---|---|---|---|---|
| GJ 3222 b | 10.7 days | 0.0910 AU | 3.4 R⊕ estimated | 11.442 M⊕ minimum | Radial Velocity, 2022 |
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.