Star · G1I
HIP 39617
HIP 39617 is a supergiant star of spectral type G1I in the constellation Puppis, 2,285 light-years from the Sun.
| Constellation | Puppis |
|---|---|
| Distance | 2,285 light-years (700.6 pc) |
| Apparent magnitude | magnitude 6.15 |
| Absolute magnitude | magnitude −3.08 |
| Spectral type | G1I |
| Surface temperature | 4,520 K |
| Luminosity | 2,630 L☉ |
| Radius | 83.6 R☉ |
| Mass | 8.61 M☉ (estimated) |
| Right ascension (J2000) | 8h 05m 44.9s |
| Declination (J2000) | −33° 34′ 10″ |
| Space velocity (relative to the Sun) | 45.9 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 6.15). Visible from the whole Southern Hemisphere and north to latitude 56° N. South of latitude 56° 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 260 BC. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 41 million years.
The Sun seen from there
From a planet around HIP 39617, the Sun would look like a star of magnitude 14.06, 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.