Star · K1III
HIP 37664
HIP 37664 is a giant star of spectral type K1III in the constellation Puppis, 220.7 light-years from the Sun.
| Constellation | Puppis |
|---|---|
| Distance | 220.7 light-years (67.7 pc) |
| Apparent magnitude | magnitude 5.12 |
| Absolute magnitude | magnitude 0.97 |
| Spectral type | K1III |
| Surface temperature | 4,510 K |
| Luminosity | 63.9 L☉ |
| Radius | 13.1 R☉ |
| Mass | 2.98 M☉ (estimated) |
| Right ascension (J2000) | 7h 43m 41.9s |
| Declination (J2000) | −40° 56′ 02″ |
| Space velocity (relative to the Sun) | 86.7 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 5.12). Visible from the whole Southern Hemisphere and north to latitude 49° N. South of latitude 49° 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 1805. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 3.9 million years.
The Sun seen from there
From a planet around HIP 37664, the Sun would look like a star of magnitude 8.98, in the direction where our sky has the constellation Cygnus. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- HIP 38369 9.46 light-years
- HIP 39026 17.6 light-years
- HIP 37460 18.6 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.