Star · K8
GJ 3621
GJ 3621 is a main-sequence star of spectral type K8 in the constellation Leo, 109.5 light-years from the Sun.
| Other names | HIP 52765 |
|---|---|
| Constellation | Leo |
| Distance | 109.5 light-years (33.6 pc) |
| Apparent magnitude | magnitude 10.12 |
| Absolute magnitude | magnitude 7.49 |
| Spectral type | K8 |
| Surface temperature | 4,290 K |
| Luminosity | 0.186 L☉ |
| Radius | 0.779 R☉ |
| Mass | 0.656 M☉ (estimated) |
| Right ascension (J2000) | 10h 47m 19.2s |
| Declination (J2000) | +21° 29′ 51″ |
| Space velocity (relative to the Sun) | 73.2 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 10.12. Visible from the whole Northern Hemisphere and south to latitude 69° S. North of latitude 69° N it never sets. It stands highest at midnight in March, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1916. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 1.9 million years.
The Sun seen from there
From a planet around GJ 3621, the Sun would look like a star of magnitude 7.46, in the direction where our sky has the constellation Aquarius. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- 2MASSW J1035245+250745 10.1 light-years
- HIP 52051 13.1 light-years
- HIP 53731 14.6 light-years
- HIP 53747 15.2 light-years
- 60 Leo 15.3 light-years
- HIP 54697 15.5 light-years
- HIP 51550 15.8 light-years
- HD 98736 16.9 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.