Star · G5
HIP 12690
HIP 12690 is a supergiant star of spectral type G5 in the constellation Perseus, 1,791 light-years from the Sun.
| Constellation | Perseus |
|---|---|
| Distance | 1,791 light-years (549.1 pc) |
| Apparent magnitude | magnitude 6.30 |
| Absolute magnitude | magnitude −2.40 |
| Spectral type | G5 |
| Surface temperature | 4,430 K |
| Luminosity | 1,500 L☉ |
| Radius | 65.7 R☉ |
| Mass | 7.34 M☉ (estimated) |
| Right ascension (J2000) | 2h 43m 01.9s |
| Declination (J2000) | +48° 15′ 55″ |
| Space velocity (relative to the Sun) | 20.2 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 6.30). Visible from the whole Northern Hemisphere and south to latitude 42° S. North of latitude 42° N it never sets. It stands highest at midnight in October, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 235. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 32 million years.
The Sun seen from there
From a planet around HIP 12690, the Sun would look like a star of magnitude 13.53, in the direction where our sky has the constellation Lupus. 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.