Kepler-45 is 1,246 light-years from the Sun. The NASA Exoplanet Archive lists 1 planet around this M star; the first was found in 2011 by transit (Kepler).
Fly there in 3DKepler-45 b goes round its star every 2.46 days, 36 times as often as Mercury goes round the Sun.
| Spectral type | M |
| Surface temperature | 3,820 K |
| Mass | 0.59 solar masses |
| Radius | 0.55 solar radii |
| Luminosity | 0.053 times the Sun |
| Apparent magnitude | 16.744 |
| Age | about 0.5 billion years |
| Distance from the Sun | 1245.8 light-years (382.0 parsecs) |
| Position (J2000) | RA 292.8729°, Dec 41.0642° |
| Constellation | Cygnus |
| Planet | Year | Orbit | Radius | Mass | Found |
|---|---|---|---|---|---|
| Kepler-45 b | 2.46 days | 0.0300 AU | 10.76 R⊕ | 160.5 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.
For a star of 3,820 K, 0.053 times as bright as the Sun, the habitable zone, where starlight could keep water liquid on a rocky surface, runs from about 0.24 to 0.45 AU. None of its known planets orbits inside it. The zone says how much starlight arrives, not whether a planet has water or air. The edges follow Kopparapu et al. (2014), as the 3D view draws them.
The light you see left 1,246 years ago, around AD 780.