Kepler-15 is 2,412 light-years from the Sun. The NASA Exoplanet Archive lists 1 planet around this 5,515 K star; the first was found in 2011 by transit (Kepler).
Fly there in 3DKepler-15 b goes round its star every 4.94 days, 18 times as often as Mercury goes round the Sun.
| Surface temperature | 5,515 K |
| Mass | 1.018 solar masses |
| Radius | 0.992 solar radii |
| Luminosity | 0.8185 times the Sun |
| Apparent magnitude | 13.81 |
| Age | about 3.7 billion years |
| Distance from the Sun | 2411.6 light-years (739.4 parsecs) |
| Position (J2000) | RA 296.2006°, Dec 49.1400° |
| Constellation | Cygnus |
| Planet | Year | Orbit | Radius | Mass | Found |
|---|---|---|---|---|---|
| Kepler-15 b | 4.94 days | 0.0571 AU | 10.76 R⊕ | 209.76 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 5,515 K, 0.82 times as bright as the Sun, the habitable zone, where starlight could keep water liquid on a rocky surface, runs from about 0.87 to 1.55 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 2,412 years ago, around 400 BC.