Kepler-42 is 131 light-years from the Sun. The NASA Exoplanet Archive lists 3 planets around this M star; the first was found in 2011 by transit (Kepler).
Fly there in 3DKepler-42 c goes round its star every 10.9 hours, 194 times as often as Mercury goes round the Sun.
| Spectral type | M |
| Surface temperature | 3,068 K |
| Mass | 0.13 solar masses |
| Radius | 0.17 solar radii |
| Luminosity | 0.002399 times the Sun |
| Apparent magnitude | 16.7 |
| Age | about 4.5 billion years |
| Distance from the Sun | 130.7 light-years (40.1 parsecs) |
| Position (J2000) | RA 292.2196°, Dec 44.6174° |
| Constellation | Cygnus |
| Planet | Year | Orbit | Radius | Mass | Found |
|---|---|---|---|---|---|
| Kepler-42 c | 10.9 hours | 0.0060 AU | 0.73 R⊕ | 60.337 M⊕ | Transit, 2011 |
| Kepler-42 b | 29.1 hours | 0.0116 AU | 0.78 R⊕ | 0.70594 M⊕ | Transit, 2011 |
| Kepler-42 d | 44.8 hours | 0.0154 AU | 0.57 R⊕ | 0.35779 M⊕ | Transit, 2011 |
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.