Star · ?
GJ 1129
GJ 1129 is a main-sequence star of spectral type ? in the constellation Hydra, 35.8 light-years from the Sun.
| Constellation | Hydra |
|---|---|
| Distance | 35.8 light-years (11.0 pc) |
| Apparent magnitude | magnitude 12.60 |
| Absolute magnitude | magnitude 12.40 |
| Spectral type | ? |
| Surface temperature | 3,660 K |
| Luminosity | 0.00417 L☉ |
| Radius | 0.16 R☉ |
| Mass | 0.175 M☉ (estimated) |
| Right ascension (J2000) | 9h 44m 48.0s |
| Declination (J2000) | −18° 12′ 43″ |
| Space velocity (relative to the Sun) | 84.3 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 12.60. Visible from the whole Southern Hemisphere and north to latitude 72° N. South of latitude 72° S it never sets. It stands highest at midnight in February, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1990. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 636 thousand years.
The Sun seen from there
From a planet around GJ 1129, the Sun would look like a star of magnitude 5.03, in the direction where our sky has the constellation Pegasus. It would be visible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- Gl 352B 3.81 light-years
- Gl 352A 4.68 light-years
- GJ 357 5.58 light-years
- HIP 48659 5.84 light-years
- 2MASS J09211410-2104446 6.63 light-years
- WISEPC J101808.05-244557.7 7.40 light-years
- HIP 48336 8.12 light-years
- GJ 3543 9.26 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.