Star · F8
12 Com
12 Com is a giant star of spectral type F8 in the constellation Coma Berenices, 283.9 light-years from the Sun.
| Other names | HIP 60351 |
|---|---|
| Constellation | Coma Berenices |
| Distance | 283.9 light-years (87.0 pc) |
| Apparent magnitude | magnitude 4.78 |
| Absolute magnitude | magnitude 0.08 |
| Spectral type | F8 |
| Surface temperature | 6,320 K |
| Luminosity | 80.3 L☉ |
| Radius | 7.47 R☉ |
| Mass | 3.18 M☉ (estimated) |
| Right ascension (J2000) | 12h 22m 30.3s |
| Declination (J2000) | +25° 50′ 46″ |
| Space velocity (relative to the Sun) | 5.9 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 4.78). Visible from the whole Northern Hemisphere and south to latitude 64° S. North of latitude 64° N it never sets. It stands highest at midnight in March, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1742. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 5.0 million years.
The Sun seen from there
From a planet around 12 Com, the Sun would look like a star of magnitude 9.53, 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):
- HIP 60406 0.71 light-years
- HIP 60582 4.05 light-years
- HIP 60266 4.66 light-years
- HIP 60293 5.34 light-years
- HIP 60458 6.09 light-years
- HIP 60066 6.29 light-years
- HIP 60649 7.85 light-years
- HIP 59957 7.99 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.