Star · B3V
HIP 39866
HIP 39866 is a main-sequence star of spectral type B3V in the constellation Puppis, 2,414 light-years from the Sun.
| Constellation | Puppis |
|---|---|
| Distance | 2,414 light-years (740.2 pc) |
| Apparent magnitude | magnitude 6.36 |
| Absolute magnitude | magnitude −2.99 |
| Spectral type | B3V |
| Surface temperature | 10,850 K |
| Luminosity | 2,110 L☉ |
| Radius | 13 R☉ |
| Mass | 8.1 M☉ (estimated) |
| Right ascension (J2000) | 8h 08m 37.6s |
| Declination (J2000) | −37° 40′ 52″ |
| Space velocity (relative to the Sun) | 49.3 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 6.36). Visible from the whole Southern Hemisphere and north to latitude 52° N. South of latitude 52° 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 389 BC. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 43 million years.
The Sun seen from there
From a planet around HIP 39866, the Sun would look like a star of magnitude 14.18, 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.