Star · K3III
HIP 39690
HIP 39690 is a giant star of spectral type K3III in the constellation Vela, 1,662 light-years from the Sun.
| Constellation | Vela |
|---|---|
| Distance | 1,662 light-years (509.5 pc) |
| Apparent magnitude | magnitude 5.04 |
| Absolute magnitude | magnitude −3.50 |
| Spectral type | K3III |
| Surface temperature | 3,810 K |
| Luminosity | 7,690 L☉ |
| Radius | 201 R☉ |
| Mass | 11.7 M☉ (estimated) |
| Right ascension (J2000) | 8h 06m 40.3s |
| Declination (J2000) | −45° 15′ 58″ |
| Space velocity (relative to the Sun) | 39.2 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 5.04). Visible from the whole Southern Hemisphere and north to latitude 45° N. South of latitude 45° 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 364. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 29 million years.
The Sun seen from there
From a planet around HIP 39690, the Sun would look like a star of magnitude 13.37, 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.