Star · M3
GJ 3303
GJ 3303 is a main-sequence star of spectral type M3 in the constellation Eridanus, 56.4 light-years from the Sun.
| Constellation | Eridanus |
|---|---|
| Distance | 56.4 light-years (17.3 pc) |
| Apparent magnitude | magnitude 13.70 |
| Absolute magnitude | magnitude 12.51 |
| Spectral type | M3 |
| Surface temperature | 3,850 K |
| Luminosity | 0.00288 L☉ |
| Radius | 0.12 R☉ |
| Mass | 0.149 M☉ (estimated) |
| Right ascension (J2000) | 4h 36m 55.6s |
| Declination (J2000) | −29° 03′ 24″ |
| Space velocity (relative to the Sun) | 44.6 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 13.70. Visible from the whole Southern Hemisphere and north to latitude 61° N. South of latitude 61° S 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 1970. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 1.0 million years.
The Sun seen from there
From a planet around GJ 3303, the Sun would look like a star of magnitude 6.02, 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):
- 2MASSI J0445538-304820 4.49 light-years
- GJ 2037 5.14 light-years
- GJ 3317 6.73 light-years
- WISEPA J044853.29-193548.5 9.65 light-years
- GJ 3293 10.6 light-years
- GJ 1079 11.3 light-years
- 2MASSI J0443058-320209 11.5 light-years
- 2MASSI J0512063-294954 12.5 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.