Star · ?
GJ 1147
GJ 1147 is a main-sequence star of spectral type ? in the constellation Centaurus, 49.8 light-years from the Sun.
| Constellation | Centaurus |
|---|---|
| Distance | 49.8 light-years (15.3 pc) |
| Apparent magnitude | magnitude 13.79 |
| Absolute magnitude | magnitude 12.87 |
| Spectral type | ? |
| Surface temperature | 3,490 K |
| Luminosity | 0.00355 L☉ |
| Radius | 0.163 R☉ |
| Mass | 0.163 M☉ (estimated) |
| Right ascension (J2000) | 11h 38m 27.4s |
| Declination (J2000) | −41° 22′ 09″ |
| Space velocity (relative to the Sun) | 74.4 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 13.79. Visible from the whole Southern Hemisphere and north to latitude 49° N. South of latitude 49° S it never sets. It stands highest at midnight in March, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1976. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 883 thousand years.
The Sun seen from there
From a planet around GJ 1147, the Sun would look like a star of magnitude 5.75, in the direction where our sky has the constellation Andromeda. It would be visible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- SIMP J11322058-3809562 6.17 light-years
- HIP 56998 8.47 light-years
- 2MASS J11263991-5003550 8.51 light-years
- 2MASS J11220826-3512363 8.54 light-years
- GJ 1157 8.69 light-years
- GJ 3692 9.03 light-years
- WISEPC J104245.23-384238.3 9.58 light-years
- GJ 1135 10.5 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.