Star · G8
HIP 51816
HIP 51816 is a supergiant star of spectral type G8 in the constellation Vela, 822.0 light-years from the Sun.
| Constellation | Vela |
|---|---|
| Distance | 822.0 light-years (252.0 pc) |
| Apparent magnitude | magnitude 6.09 |
| Absolute magnitude | magnitude −0.92 |
| Spectral type | G8 |
| Surface temperature | 4,890 K |
| Luminosity | 288 L☉ |
| Radius | 23.6 R☉ |
| Mass | 4.58 M☉ (estimated) |
| Right ascension (J2000) | 10h 35m 10.4s |
| Declination (J2000) | −43° 39′ 52″ |
| Space velocity (relative to the Sun) | 67.3 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 6.09). Visible from the whole Southern Hemisphere and north to latitude 46° N. South of latitude 46° 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 1204. 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 51816, the Sun would look like a star of magnitude 11.84, in the direction where our sky has the constellation Lacerta. 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.