Star · K7V
Gl 397
Gl 397 is a main-sequence star of spectral type K7V in the constellation Ursa Major, 52.2 light-years from the Sun.
| Other names | HIP 51525 |
|---|---|
| Constellation | Ursa Major |
| Distance | 52.2 light-years (16.0 pc) |
| Apparent magnitude | magnitude 8.85 |
| Absolute magnitude | magnitude 7.83 |
| Spectral type | K7V |
| Surface temperature | 4,070 K |
| Luminosity | 0.168 L☉ |
| Radius | 0.824 R☉ |
| Mass | 0.64 M☉ (estimated) |
| Right ascension (J2000) | 10h 31m 24.2s |
| Declination (J2000) | +45° 31′ 34″ |
| Space velocity (relative to the Sun) | 65.5 km/s |
In the sky
Too faint for the naked eye (magnitude 8.85); binoculars will find it. Visible from the whole Northern Hemisphere and south to latitude 44° S. North of latitude 44° N it never sets. It stands highest at midnight in February, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1974. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 925 thousand years.
The Sun seen from there
From a planet around Gl 397, the Sun would look like a star of magnitude 5.85, in the direction where our sky has the constellation Grus. It would be visible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- Gl 378 5.96 light-years
- Gl 414.1A 7.34 light-years
- Gl 414.1B 7.38 light-years
- Chalawan 9.21 light-years
- Gl 400B 9.40 light-years
- Gl 400A 9.40 light-years
- CWISEP J094005.50+523359.2 10.0 light-years
- 2MASS J10511900+5613086 10.1 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.