Star · M3I
HIP 45924
HIP 45924 is a supergiant star of spectral type M3I in the constellation Vela, 645.6 light-years from the Sun.
| Constellation | Vela |
|---|---|
| Distance | 645.6 light-years (197.9 pc) |
| Apparent magnitude | magnitude 5.56 |
| Absolute magnitude | magnitude −0.92 |
| Spectral type | M3I |
| Surface temperature | 3,600 K |
| Luminosity | 977 L☉ |
| Radius | 80.4 R☉ |
| Mass | 6.49 M☉ (estimated) |
| Right ascension (J2000) | 9h 21m 51.0s |
| Declination (J2000) | −42° 11′ 42″ |
| Space velocity (relative to the Sun) | 89.2 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 5.56). Visible from the whole Southern Hemisphere and north to latitude 48° N. South of latitude 48° S it never sets. It stands highest at midnight in February, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1380. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 11 million years.
The Sun seen from there
From a planet around HIP 45924, the Sun would look like a star of magnitude 11.31, in the direction where our sky has the constellation Cygnus. 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.