Star · K2III
γ Com
γ Com is a giant star of spectral type K2III in the constellation Coma Berenices, 164.2 light-years from the Sun.
| Other names | HIP 60742 |
|---|---|
| Constellation | Coma Berenices |
| Distance | 164.2 light-years (50.3 pc) |
| Apparent magnitude | magnitude 4.35 |
| Absolute magnitude | magnitude 0.84 |
| Spectral type | K2III |
| Surface temperature | 4,460 K |
| Luminosity | 74.5 L☉ |
| Radius | 14.5 R☉ |
| Mass | 3.11 M☉ (estimated) |
| Right ascension (J2000) | 12h 26m 56.3s |
| Declination (J2000) | +28° 16′ 06″ |
| Space velocity (relative to the Sun) | 27.9 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 4.35). 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 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 1862. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 2.9 million years.
The Sun seen from there
From a planet around γ Com, the Sun would look like a star of magnitude 8.34, 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):
- Gl 464.1 9.08 light-years
- 9 Com 9.37 light-years
- HIP 60170 9.65 light-years
- HIP 59923 9.84 light-years
- HIP 60230 11.2 light-years
- HIP 60186 12.5 light-years
- HIP 61128 15.1 light-years
- 2MASS J12304562+2827583 15.7 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.