Star · K
GJ 3591
GJ 3591 is a main-sequence star of spectral type K in the constellation Chamaeleon, 94.7 light-years from the Sun.
| Other names | HIP 49889 |
|---|---|
| Constellation | Chamaeleon |
| Distance | 94.7 light-years (29.0 pc) |
| Apparent magnitude | magnitude 11.07 |
| Absolute magnitude | magnitude 8.75 |
| Spectral type | K |
| Surface temperature | 3,920 K |
| Luminosity | 0.0847 L☉ |
| Radius | 0.632 R☉ |
| Mass | 0.54 M☉ (estimated) |
| Right ascension (J2000) | 10h 11m 09.2s |
| Declination (J2000) | −82° 51′ 58″ |
| Space velocity (relative to the Sun) | 85.2 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 11.07. Visible from the whole Southern Hemisphere and north to latitude 7° N. South of latitude 7° S it never sets.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1931. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 1.7 million years.
The Sun seen from there
From a planet around GJ 3591, the Sun would look like a star of magnitude 7.15, in the direction where our sky has the constellation Cepheus. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- 2MASS J09221952-8010399 5.51 light-years
- GJ 3440 9.68 light-years
- GJ 3486 10.8 light-years
- HIP 35937 11.3 light-years
- WISEA J065113.90-835502.6 13.3 light-years
- GJ 2096 15.3 light-years
- HIP 25612 15.7 light-years
- HIP 64690 16.6 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.