Kepler-446 is 314 light-years from the Sun. The NASA Exoplanet Archive lists 3 planets around this M4 star; the first was found in 2015 by transit (Kepler).
Fly there in 3DKepler-446 b goes round its star every 37.6 hours, 56 times as often as Mercury goes round the Sun.
| Spectral type | M4 |
| Surface temperature | 3,359 K |
| Mass | 0.22 solar masses |
| Radius | 0.24 solar radii |
| Luminosity | 0.005654 times the Sun |
| Apparent magnitude | 17.5041 |
| Age | about 3.72 billion years |
| Distance from the Sun | 314.2 light-years (96.3 parsecs) |
| Position (J2000) | RA 282.2501°, Dec 44.9210° |
| Constellation | Lyra |
| Planet | Year | Orbit | Radius | Mass | Found |
|---|---|---|---|---|---|
| Kepler-446 b | 37.6 hours | 0.0182 AU | 1.5 R⊕ | 2.86 M⊕ estimated | Transit, 2015 |
| Kepler-446 c | 3.04 days | 0.0283 AU | 1.11 R⊕ | 1.41 M⊕ estimated | Transit, 2015 |
| Kepler-446 d | 5.15 days | 0.0403 AU | 1.35 R⊕ | 2.39 M⊕ estimated | Transit, 2015 |
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.