Star · M2
GJ 3309
GJ 3309 is a main-sequence star of spectral type M2 in the constellation Taurus, 53.6 light-years from the Sun.
| Constellation | Taurus |
|---|---|
| Distance | 53.6 light-years (16.4 pc) |
| Apparent magnitude | magnitude 11.26 |
| Absolute magnitude | magnitude 10.18 |
| Spectral type | M2 |
| Surface temperature | 3,750 K |
| Luminosity | 0.0283 L☉ |
| Radius | 0.399 R☉ |
| Mass | 0.402 M☉ (estimated) |
| Right ascension (J2000) | 4h 44m 26.1s |
| Declination (J2000) | +27° 51′ 46″ |
| Space velocity (relative to the Sun) | 34.1 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 11.26. Visible from the whole Northern Hemisphere and south to latitude 62° S. North of latitude 62° N it never sets. It stands highest at midnight in November, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1972. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 951 thousand years.
The Sun seen from there
From a planet around GJ 3309, the Sun would look like a star of magnitude 5.91, in the direction where our sky has the constellation Scorpius. It would be visible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- Gl 171.2A 3.58 light-years
- Gl 171.2B 3.59 light-years
- Gl 188B 9.92 light-years
- 104 Tau 9.92 light-years
- 39 Tau 10.1 light-years
- CWISE J051427.35+200447.7 10.4 light-years
- WISE J050854.88+331920.8 10.9 light-years
- GJ 3296 11.3 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.