Star · G0III
31 Com
31 Com is a giant star of spectral type G0III in the constellation Coma Berenices, 275.3 light-years from the Sun.
| Other names | HIP 62763 |
|---|---|
| Constellation | Coma Berenices |
| Distance | 275.3 light-years (84.4 pc) |
| Apparent magnitude | magnitude 4.93 |
| Absolute magnitude | magnitude 0.30 |
| Spectral type | G0III |
| Surface temperature | 5,670 K |
| Luminosity | 72.1 L☉ |
| Radius | 8.81 R☉ |
| Mass | 3.08 M☉ (estimated) |
| Right ascension (J2000) | 12h 51m 41.9s |
| Declination (J2000) | +27° 32′ 27″ |
| Space velocity (relative to the Sun) | 5.9 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 4.93). Visible from the whole Northern Hemisphere and south to latitude 62° S. North of latitude 62° N it never sets. It stands highest at midnight in April, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1751. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 4.9 million years.
The Sun seen from there
From a planet around 31 Com, the Sun would look like a star of magnitude 9.46, in the direction where our sky has the constellation Sculptor. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- 30 Com 2.59 light-years
- HIP 63405 10.8 light-years
- HIP 62805 10.9 light-years
- HIP 62499 14.1 light-years
- HIP 63333 14.7 light-years
- HIP 62256 15.3 light-years
- HIP 62129 17.6 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.