Star · B3IV
HIP 40016
HIP 40016 is a subgiant star of spectral type B3IV in the constellation Vela, 1,236 light-years from the Sun.
| Constellation | Vela |
|---|---|
| Distance | 1,236 light-years (378.9 pc) |
| Apparent magnitude | magnitude 6.46 |
| Absolute magnitude | magnitude −1.43 |
| Spectral type | B3IV |
| Surface temperature | 12,290 K |
| Luminosity | 640 L☉ |
| Radius | 5.58 R☉ |
| Mass | 5.76 M☉ (estimated) |
| Right ascension (J2000) | 8h 10m 20.6s |
| Declination (J2000) | −49° 14′ 14″ |
| Space velocity (relative to the Sun) | 25.9 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 6.46). Visible from the whole Southern Hemisphere and north to latitude 41° N. South of latitude 41° S it never sets. It stands highest at midnight in January, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 790. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 22 million years.
The Sun seen from there
From a planet around HIP 40016, the Sun would look like a star of magnitude 12.72, 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.