Star · G0V
β Com
β Com is a main-sequence star of spectral type G0V in the constellation Coma Berenices, 30.0 light-years from the Sun.
| Other names | Gl 502 · HIP 64394 |
|---|---|
| Constellation | Coma Berenices |
| Distance | 30.0 light-years (9.20 pc) |
| Apparent magnitude | magnitude 4.23 |
| Absolute magnitude | magnitude 4.41 |
| Spectral type | G0V |
| Surface temperature | 6,080 K |
| Luminosity | 1.52 L☉ |
| Radius | 1.11 R☉ |
| Mass | 1.11 M☉ (estimated) |
| Right ascension (J2000) | 13h 11m 52.4s |
| Declination (J2000) | +27° 52′ 41″ |
| Space velocity (relative to the Sun) | 52.2 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 4.23). 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 1996. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 532 thousand years.
The Sun seen from there
From a planet around β Com, the Sun would look like a star of magnitude 4.65, in the direction where our sky has the constellation Sculptor. It would be visible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- GJ 3801 4.48 light-years
- GJ 3839 7.61 light-years
- Gl 519 7.87 light-years
- Chara 8.15 light-years
- ULAS J131943.77+120900.2 8.54 light-years
- HD 115404 A 8.54 light-years
- Gl 505B 8.56 light-years
- WISEPC J121756.91+162640.2 8.87 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.