Star · ?
GJ 2045
GJ 2045 is a main-sequence star of spectral type ? in the constellation Orion, 42.3 light-years from the Sun.
| Constellation | Orion |
|---|---|
| Distance | 42.3 light-years (13.0 pc) |
| Apparent magnitude | magnitude 15.28 |
| Absolute magnitude | magnitude 14.71 |
| Spectral type | ? |
| Surface temperature | 3,320 K |
| Luminosity | 8.92 × 10⁻⁴ L☉ |
| Radius | 0.0902 R☉ |
| Mass | 0.0895 M☉ (estimated) |
| Right ascension (J2000) | 5h 42m 12.8s |
| Declination (J2000) | −5° 27′ 49″ |
| Space velocity (relative to the Sun) | 59.6 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 15.28. Visible from the whole Southern Hemisphere and north to latitude 85° N. It stands highest at midnight in December, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1984. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 751 thousand years.
The Sun seen from there
From a planet around GJ 2045, the Sun would look like a star of magnitude 5.40, in the direction where our sky has the constellation Ophiuchus. It would be visible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- Gl 204 2.92 light-years
- SDSSp J053951.99-005902.0 3.44 light-years
- GJ 1086 6.95 light-years
- GJ 3357 7.10 light-years
- 2MASSI J0523382-140302 7.15 light-years
- GJ 1085 7.49 light-years
- WISEPA J062309.94-045624.6 8.47 light-years
- WISE J045746.08-020719.2 8.65 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.