Star · ?
GJ 3111
GJ 3111 is a main-sequence star of spectral type ? in the constellation Cetus, 112.8 light-years from the Sun.
| Constellation | Cetus |
|---|---|
| Distance | 112.8 light-years (34.6 pc) |
| Apparent magnitude | magnitude 13.28 |
| Absolute magnitude | magnitude 10.58 |
| Spectral type | ? |
| Surface temperature | 3,650 K |
| Luminosity | 0.0225 L☉ |
| Radius | 0.376 R☉ |
| Mass | 0.364 M☉ (estimated) |
| Right ascension (J2000) | 1h 43m 50.0s |
| Declination (J2000) | −23° 51′ 12″ |
| Space velocity (relative to the Sun) | 6.1 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 13.28. Visible from the whole Southern Hemisphere and north to latitude 66° N. South of latitude 66° S it never sets. It stands highest at midnight in October, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1913. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 2.0 million years.
The Sun seen from there
From a planet around GJ 3111, the Sun would look like a star of magnitude 7.53, in the direction where our sky has the constellation Boötes. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- HIP 8008 5.18 light-years
- HIP 7228 5.90 light-years
- WISEU J013522.46-221957.3 9.31 light-years
- WISEA J014603.23-261908.7 9.72 light-years
- 2MASS J01225093-2439505 9.84 light-years
- 2MASS J01392388-1845029 10.4 light-years
- Gl 62 11.3 light-years
- HIP 8039 13.4 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.