Star · G9III
Gl 635.1
Gl 635.1 is a giant star of spectral type G9III in the constellation Ursa Minor, 404.9 light-years from the Sun.
| Other names | HIP 81428 |
|---|---|
| Constellation | Ursa Minor |
| Distance | 404.9 light-years (124.1 pc) |
| Apparent magnitude | magnitude 6.33 |
| Absolute magnitude | magnitude 0.86 |
| Spectral type | G9III |
| Surface temperature | 4,430 K |
| Luminosity | 74.7 L☉ |
| Radius | 14.7 R☉ |
| Mass | 3.11 M☉ (estimated) |
| Right ascension (J2000) | 16h 37m 52.7s |
| Declination (J2000) | +78° 55′ 07″ |
| Space velocity (relative to the Sun) | 36.6 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 6.33). Visible from the whole Northern Hemisphere and south to latitude 11° S. North of latitude 11° N it never sets.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1621. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 7.2 million years.
The Sun seen from there
From a planet around Gl 635.1, the Sun would look like a star of magnitude 10.30, in the direction where our sky has the constellation Mensa. 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.