K2-396 is 896 light-years from the Sun. The NASA Exoplanet Archive lists 2 planets around this G9 star; the first was found in 2022 by transit (K2).
Fly there in 3DK2-396 b goes round its star every 16.2 hours, 131 times as often as Mercury goes round the Sun.
Where the archive gives only a period or only an orbit size, the other is worked out from Kepler’s third law with the star’s mass.
| Spectral type | G9 |
| Surface temperature | 5,236 K |
| Mass | 0.954 solar masses |
| Radius | 0.92 solar radii |
| Luminosity | 0.5887 times the Sun |
| Apparent magnitude | 13.32 |
| Distance from the Sun | 896.5 light-years (274.9 parsecs) |
| Position (J2000) | RA 74.6929°, Dec 17.2691° |
| Constellation | Taurus |
| Planet | Year | Orbit | Radius | Mass | Found |
|---|---|---|---|---|---|
| K2-396 b | 16.2 hours | 0.0148 AU from Kepler’s law | 1.579 R⊕ | 3.12 M⊕ estimated | Transit, 2022 |
| K2-396 c | 25.8 days | 0.168 AU from Kepler’s law | 3.124 R⊕ | 9.93 M⊕ estimated | Transit, 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.