Kepler-403 is 2,741 light-years from the Sun. The NASA Exoplanet Archive lists 3 planets around this 6,090 K star; the first was found in 2014 by transit (Kepler).
Fly there in 3DKepler-403 b goes round its star every 7.03 days, 13 times as often as Mercury goes round the Sun.
| Surface temperature | 6,090 K |
| Mass | 1.299 solar masses |
| Radius | 1.329 solar radii |
| Luminosity | 4.406 times the Sun |
| Apparent magnitude | 12.818 |
| Age | about 3.09 billion years |
| Distance from the Sun | 2740.6 light-years (840.3 parsecs) |
| Position (J2000) | RA 289.9214°, Dec 46.7445° |
| Constellation | Cygnus |
| Planet | Year | Orbit | Radius | Mass | Found |
|---|---|---|---|---|---|
| Kepler-403 b | 7.03 days | 0.0760 AU | 1.25 R⊕ | 2.1 M⊕ estimated | Transit, 2014 |
| Kepler-403 d | 13.6 days | 0.122 AU | 1.42 R⊕ | 2.6 M⊕ estimated | Transit, 2016 |
| Kepler-403 c | 54.3 days | 0.297 AU | 1.75 R⊕ | 3.71 M⊕ estimated | Transit, 2014 |
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 6,090 K, 4.4 times as bright as the Sun, the habitable zone, where starlight could keep water liquid on a rocky surface, runs from about 1.96 to 3.43 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 2,741 years ago, around 700 BC.