Kepler-401 is 3,149 light-years from the Sun. The NASA Exoplanet Archive lists 3 planets around this 6,117 K star; the first was found in 2014 by transit (Kepler).
Fly there in 3DKepler-401 b goes round its star every 14.4 days, 6 times as often as Mercury goes round the Sun.
| Surface temperature | 6,117 K |
| Mass | 1.173 solar masses |
| Radius | 1.333 solar radii |
| Luminosity | 3.682 times the Sun |
| Apparent magnitude | 13.366 |
| Age | about 3.55 billion years |
| Distance from the Sun | 3149.2 light-years (965.5 parsecs) |
| Position (J2000) | RA 290.0827°, Dec 50.8634° |
| Constellation | Cygnus |
| Planet | Year | Orbit | Radius | Mass | Found |
|---|---|---|---|---|---|
| Kepler-401 b | 14.4 days | 0.122 AU | 1.71 R⊕ | 3.57 M⊕ estimated | Transit, 2014 |
| Kepler-401 c | 47.3 days | 0.269 AU | 2.15 R⊕ | 5.27 M⊕ estimated | Transit, 2014 |
| Kepler-401 d | 184.3 days | 0.669 AU | 2.27 R⊕ | 5.77 M⊕ estimated | Transit, 2016 |
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.