Star · G2 IV
CoRoT-31
CoRoT-31 is a main-sequence star of spectral type G2 IV in the constellation Monoceros, 6,542 light-years from the Sun. It is orbited by 1 confirmed exoplanet(s).
| Constellation | Monoceros |
|---|---|
| Distance | 6,542 light-years (2,006 pc) |
| Apparent magnitude | magnitude 15.48 |
| Absolute magnitude | magnitude 3.97 |
| Spectral type | G2 IV |
| Surface temperature | 5,700 K |
| Luminosity | 2.5 L☉ |
| Radius | 2.15 R☉ |
| Mass | 1.25 M☉ |
| Age | 4.7 billion years |
| Metallicity [Fe/H] | 0.00 |
| Right ascension (J2000) | 6h 19m 17.0s |
| Declination (J2000) | −4° 25′ 20″ |
| Space velocity (relative to the Sun) | 73.7 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 15.48. Visible from the whole Southern Hemisphere and north to latitude 86° N. It stands highest at midnight in December, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out 6,542 years ago. At that time the first farming villages were being founded; there was no writing yet. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 116 million years.
The Sun seen from there
From a planet around CoRoT-31, the Sun would look like a star of magnitude 16.34, in the direction where our sky has the constellation Ophiuchus. It would be invisible to the naked eye.
Planets
- CoRoT-31 b 4.63-day orbit · 16.4 R⊕
Stellar parameters from the NASA Exoplanet Archive; position and brightness from the HYG / AT-HYG catalogue.