Star · M1
HIP 30906
HIP 30906 is a supergiant star of spectral type M1 in the constellation Monoceros, 837.8 light-years from the Sun.
| Constellation | Monoceros |
|---|---|
| Distance | 837.8 light-years (256.9 pc) |
| Apparent magnitude | magnitude 6.17 |
| Absolute magnitude | magnitude −0.88 |
| Spectral type | M1 |
| Surface temperature | 3,740 K |
| Luminosity | 765 L☉ |
| Radius | 66 R☉ |
| Mass | 6.06 M☉ (estimated) |
| Right ascension (J2000) | 6h 29m 14.8s |
| Declination (J2000) | +2° 38′ 46″ |
| Space velocity (relative to the Sun) | 49.0 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 6.17). Visible from the whole Northern Hemisphere and south to latitude 87° S. 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 1188. 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 HIP 30906, the Sun would look like a star of magnitude 11.88, in the direction where our sky has the constellation Serpens. 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.