Star · F0IV
2 Com
2 Com is a subgiant star of spectral type F0IV in the constellation Coma Berenices, 339.0 light-years from the Sun.
| Other names | HIP 58858 |
|---|---|
| Constellation | Coma Berenices |
| Distance | 339.0 light-years (103.9 pc) |
| Apparent magnitude | magnitude 5.89 |
| Absolute magnitude | magnitude 0.81 |
| Spectral type | F0IV |
| Surface temperature | 7,810 K |
| Luminosity | 42.3 L☉ |
| Radius | 3.55 R☉ |
| Mass | 2.65 M☉ (estimated) |
| Right ascension (J2000) | 12h 04m 16.4s |
| Declination (J2000) | +21° 27′ 31″ |
| Space velocity (relative to the Sun) | 19.7 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 5.89). Visible from the whole Northern Hemisphere and south to latitude 69° S. North of latitude 69° 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 1687. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 6.0 million years.
The Sun seen from there
From a planet around 2 Com, the Sun would look like a star of magnitude 9.91, in the direction where our sky has the constellation Cetus. It would be invisible to the naked eye.
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.