Star · M3
GJ 1263
GJ 1263 is a main-sequence star of spectral type M3 in the constellation Aquarius, 40.4 light-years from the Sun.
| Constellation | Aquarius |
|---|---|
| Distance | 40.4 light-years (12.4 pc) |
| Apparent magnitude | magnitude 12.65 |
| Absolute magnitude | magnitude 12.19 |
| Spectral type | M3 |
| Surface temperature | 3,640 K |
| Luminosity | 0.00527 L☉ |
| Radius | 0.183 R☉ |
| Mass | 0.194 M☉ (estimated) |
| Right ascension (J2000) | 21h 46m 40.4s |
| Declination (J2000) | −0° 10′ 34″ |
| Space velocity (relative to the Sun) | 66.7 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 12.65. Visible from the whole Southern Hemisphere and north to latitude 90° N. It stands highest at midnight in August, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1986. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 717 thousand years.
The Sun seen from there
From a planet around GJ 1263, the Sun would look like a star of magnitude 5.29, in the direction where our sky has the constellation Sextans. It would be visible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- GJ 4239 4.21 light-years
- Gl 846 6.50 light-years
- 2MASS J21392676+0220226 6.90 light-years
- 2MASSW J2224438-015852 7.07 light-years
- GJ 4204B 7.71 light-years
- Gl 852B 8.69 light-years
- Gl 852A 8.81 light-years
- GJ 4279 10.1 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.