Star · B8III
HIP 635
HIP 635 is a giant star of spectral type B8III in the constellation Pisces, 713.0 light-years from the Sun.
| Constellation | Pisces |
|---|---|
| Distance | 713.0 light-years (218.6 pc) |
| Apparent magnitude | magnitude 6.43 |
| Absolute magnitude | magnitude −0.27 |
| Spectral type | B8III |
| Surface temperature | 12,410 K |
| Luminosity | 224 L☉ |
| Radius | 3.23 R☉ |
| Mass | 4.26 M☉ (estimated) |
| Right ascension (J2000) | 0h 07m 44.1s |
| Declination (J2000) | −2° 32′ 55″ |
| Space velocity (relative to the Sun) | 30.8 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 6.43). Visible from the whole Southern Hemisphere and north to latitude 87° N. It stands highest at midnight in September, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1313. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 13 million years.
The Sun seen from there
From a planet around HIP 635, the Sun would look like a star of magnitude 11.53, in the direction where our sky has the constellation Virgo. 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.