Star · M3
GJ 4253
GJ 4253 is a main-sequence star of spectral type M3 in the constellation Grus, 90.3 light-years from the Sun.
| Constellation | Grus |
|---|---|
| Distance | 90.3 light-years (27.7 pc) |
| Apparent magnitude | magnitude 12.45 |
| Absolute magnitude | magnitude 10.24 |
| Spectral type | M3 |
| Surface temperature | 3,850 K |
| Luminosity | 0.0233 L☉ |
| Radius | 0.343 R☉ |
| Mass | 0.37 M☉ (estimated) |
| Right ascension (J2000) | 22h 05m 54.6s |
| Declination (J2000) | −38° 16′ 09″ |
| Space velocity (relative to the Sun) | 101.2 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 12.45. Visible from the whole Southern Hemisphere and north to latitude 52° N. South of latitude 52° S it never sets. It stands highest at midnight in August, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1936. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 1.6 million years.
The Sun seen from there
From a planet around GJ 4253, the Sun would look like a star of magnitude 7.04, in the direction where our sky has the constellation Leo Minor. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- 2MASSW J2206450-421721 8.72 light-years
- GJ 4235 9.45 light-years
- Gl 836.3 11.5 light-years
- GJ 9754 12.0 light-years
- WISEA J214025.23-332707.4 13.8 light-years
- GJ 4245 13.9 light-years
- Gl 847.1 13.9 light-years
- HIP 107772 14.6 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.