Star · M
GJ 3023
GJ 3023 is a main-sequence star of spectral type M in the constellation Andromeda, 74.5 light-years from the Sun.
| Other names | HIP 1386 |
|---|---|
| Constellation | Andromeda |
| Distance | 74.5 light-years (22.8 pc) |
| Apparent magnitude | magnitude 11.54 |
| Absolute magnitude | magnitude 9.75 |
| Spectral type | M |
| Surface temperature | 3,790 K |
| Luminosity | 0.0402 L☉ |
| Radius | 0.466 R☉ |
| Mass | 0.448 M☉ (estimated) |
| Right ascension (J2000) | 0h 17m 20.3s |
| Declination (J2000) | +29° 10′ 59″ |
| Space velocity (relative to the Sun) | 88.4 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 11.54. Visible from the whole Northern Hemisphere and south to latitude 61° S. North of latitude 61° N it never sets. It stands highest at midnight in September, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1951. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 1.3 million years.
The Sun seen from there
From a planet around GJ 3023, the Sun would look like a star of magnitude 6.62, in the direction where our sky has the constellation Hydra. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- GJ 1003 6.26 light-years
- PSO J007.9194+33.5961 7.20 light-years
- GJ 3047 7.24 light-years
- Gl 908.1 8.29 light-years
- 2MASS J23512200+3010540 9.03 light-years
- 2MASS J00282091+2249050 9.19 light-years
- GJ 3057 9.56 light-years
- GJ 1019 9.68 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.