Star · K2V
Gl 621
Gl 621 is a main-sequence star of spectral type K2V in the constellation Ophiuchus, 69.6 light-years from the Sun.
| Other names | HIP 80366 |
|---|---|
| Constellation | Ophiuchus |
| Distance | 69.6 light-years (21.3 pc) |
| Apparent magnitude | magnitude 8.40 |
| Absolute magnitude | magnitude 6.75 |
| Spectral type | K2V |
| Surface temperature | 4,870 K |
| Luminosity | 0.249 L☉ |
| Radius | 0.702 R☉ |
| Mass | 0.707 M☉ (estimated) |
| Right ascension (J2000) | 16h 24m 19.8s |
| Declination (J2000) | −13° 38′ 30″ |
| Space velocity (relative to the Sun) | 31.2 km/s |
In the sky
Too faint for the naked eye (magnitude 8.40); binoculars will find it. Visible from the whole Southern Hemisphere and north to latitude 76° N. South of latitude 76° S it never sets. It stands highest at midnight in May, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1956. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 1.2 million years.
The Sun seen from there
From a planet around Gl 621, the Sun would look like a star of magnitude 6.48, in the direction where our sky has the constellation Taurus. It would be visible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- HIP 80612 4.67 light-years
- GJ 2121 4.80 light-years
- GJ 1198 6.25 light-years
- PSO J246.1033-19.6194 8.71 light-years
- GJ 3973 10.5 light-years
- CWISE J163041.79-064338.3 12.6 light-years
- Gl 622 12.9 light-years
- 2MASS J17065487-1314396 13.2 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.