Star · G9 V
CoRoT-18
CoRoT-18 is a main-sequence star of spectral type G9 V in the constellation Monoceros, 2,495 light-years from the Sun. It is orbited by 1 confirmed exoplanet(s).
| Constellation | Monoceros |
|---|---|
| Distance | 2,495 light-years (764.9 pc) |
| Apparent magnitude | magnitude 14.87 |
| Absolute magnitude | magnitude 5.45 |
| Spectral type | G9 V |
| Surface temperature | 5,440 K |
| Luminosity | 0.676 L☉ |
| Radius | 1 R☉ |
| Mass | 0.95 M☉ |
| Age | 0.6 billion years |
| Metallicity [Fe/H] | -0.10 |
| Right ascension (J2000) | 6h 32m 41.4s |
| Declination (J2000) | −0° 01′ 54″ |
| Space velocity (relative to the Sun) | 14.6 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 14.87. Visible from the whole Southern Hemisphere and north to latitude 90° 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 around 470 BC. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 44 million years.
The Sun seen from there
From a planet around CoRoT-18, the Sun would look like a star of magnitude 14.25, in the direction where our sky has the constellation Serpens. It would be invisible to the naked eye.
Planets
- CoRoT-18 b 1.9-day orbit · 14.7 R⊕
Stellar parameters from the NASA Exoplanet Archive; position and brightness from the HYG / AT-HYG catalogue.