Star · M3
GJ 4252
GJ 4252 is a main-sequence star of spectral type M3 in the constellation Pegasus, 87.6 light-years from the Sun.
| Constellation | Pegasus |
|---|---|
| Distance | 87.6 light-years (26.9 pc) |
| Apparent magnitude | magnitude 13.60 |
| Absolute magnitude | magnitude 11.45 |
| Spectral type | M3 |
| Surface temperature | 3,780 K |
| Luminosity | 0.00841 L☉ |
| Radius | 0.214 R☉ |
| Mass | 0.237 M☉ (estimated) |
| Right ascension (J2000) | 22h 05m 06.4s |
| Declination (J2000) | +5° 08′ 10″ |
| Space velocity (relative to the Sun) | 61.1 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 13.60. Visible from the whole Northern Hemisphere and south to latitude 85° S. 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 1938. 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 4252, the Sun would look like a star of magnitude 6.98, in the direction where our sky has the constellation Sextans. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- Biham 2.78 light-years
- GJ 4265 4.53 light-years
- GJ 4278B 9.45 light-years
- PSO J329.8288+03.0840 11.0 light-years
- GJ 4236 11.3 light-years
- HIP 107948 13.0 light-years
- SIMP J22355244+0418563 13.1 light-years
- GJ 4277A 13.8 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.