Star · M2
GJ 3331A
GJ 3331A is a main-sequence star of spectral type M2 in the constellation Lepus, 64.7 light-years from the Sun.
| Constellation | Lepus |
|---|---|
| Distance | 64.7 light-years (19.8 pc) |
| Apparent magnitude | magnitude 10.29 |
| Absolute magnitude | magnitude 8.80 |
| Spectral type | M2 |
| Surface temperature | 3,760 K |
| Luminosity | 0.0986 L☉ |
| Radius | 0.739 R☉ |
| Mass | 0.56 M☉ (estimated) |
| Right ascension (J2000) | 5h 06m 49.9s |
| Declination (J2000) | −21° 35′ 09″ |
| Space velocity (relative to the Sun) | 17.2 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 10.29. Visible from the whole Southern Hemisphere and north to latitude 68° N. South of latitude 68° S it never sets. It stands highest at midnight in December, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1961. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 1.1 million years.
The Sun seen from there
From a planet around GJ 3331A, the Sun would look like a star of magnitude 6.32, in the direction where our sky has the constellation Hercules. It would be visible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- Gl 199B 3.71 light-years
- Gl 199A 3.74 light-years
- GJ 3329 4.95 light-years
- 2MASSI J0512063-294954 9.56 light-years
- GJ 2037 9.60 light-years
- WISEPA J044853.29-193548.5 9.86 light-years
- GJ 3293 10.9 light-years
- WISE J051208.66-300404.4 11.1 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.