CoRoT-7 is 522 light-years from the Sun. The NASA Exoplanet Archive lists 3 planets around this G9 V star; the first was found in 2009 by transit (CoRoT).
Fly there in 3DCoRoT-7 b goes round its star every 20.5 hours, 103 times as often as Mercury goes round the Sun.
Where the archive gives only a period or only an orbit size, the other is worked out from Kepler’s third law with the star’s mass.
| Spectral type | G9 V |
| Surface temperature | 5,275 K |
| Mass | 0.82 solar masses |
| Radius | 0.83 solar radii |
| Luminosity | 0.5136 times the Sun |
| Apparent magnitude | 11.728 |
| Age | about 1.8 billion years |
| Distance from the Sun | 521.5 light-years (159.9 parsecs) |
| Position (J2000) | RA 100.9562°, Dec -1.0630° |
| Constellation | Monoceros |
| Planet | Year | Orbit | Radius | Mass | Found |
|---|---|---|---|---|---|
| CoRoT-7 d | 8.97 days | 0.0791 AU from Kepler’s law | 4.31 R⊕ estimated | 17.142 M⊕ | Radial Velocity, 2022 |
| CoRoT-7 b | 20.5 hours | 0.0170 AU | 1.6813 R⊕ | 4.0766 M⊕ | Transit, 2009 |
| CoRoT-7 c | 3.70 days | 0.0460 AU | 2.83 R⊕ estimated | 8.4 M⊕ | Radial Velocity, 2009 |
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 5,275 K, 0.51 times as bright as the Sun, the habitable zone, where starlight could keep water liquid on a rocky surface, runs from about 0.70 to 1.26 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 522 years ago, around 1500.