Star · G0I
β Cam
β Cam is a supergiant star of spectral type G0I in the constellation Camelopardalis, 840.6 light-years from the Sun.
| Other names | HIP 23522 |
|---|---|
| Constellation | Camelopardalis |
| Distance | 840.6 light-years (257.7 pc) |
| Apparent magnitude | magnitude 4.03 |
| Absolute magnitude | magnitude −3.03 |
| Spectral type | G0I |
| Surface temperature | 4,940 K |
| Luminosity | 1,960 L☉ |
| Radius | 60.5 R☉ |
| Mass | 7.93 M☉ (estimated) |
| Right ascension (J2000) | 5h 03m 25.1s |
| Declination (J2000) | +60° 26′ 32″ |
| Space velocity (relative to the Sun) | 18.9 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 4.03). Visible from the whole Northern Hemisphere and south to latitude 30° S. North of latitude 30° N it never sets. It stands highest at midnight in December, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1185. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 15 million years.
The Sun seen from there
From a planet around β Cam, the Sun would look like a star of magnitude 11.89, in the direction where our sky has the constellation Ara. 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.