Star · M1V
GJ 4247
GJ 4247 is a main-sequence star of spectral type M1V in the constellation Pegasus, 29.7 light-years from the Sun.
| Other names | HIP 108706 |
|---|---|
| Constellation | Pegasus |
| Distance | 29.7 light-years (9.10 pc) |
| Apparent magnitude | magnitude 11.99 |
| Absolute magnitude | magnitude 12.19 |
| Spectral type | M1V |
| Surface temperature | 3,490 K |
| Luminosity | 0.0066 L☉ |
| Radius | 0.222 R☉ |
| Mass | 0.214 M☉ (estimated) |
| Right ascension (J2000) | 22h 01m 13.0s |
| Declination (J2000) | +28° 18′ 25″ |
| Space velocity (relative to the Sun) | 17.4 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 11.99. Visible from the whole Northern Hemisphere and south to latitude 62° S. North of latitude 62° N 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 1996. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 527 thousand years.
The Sun seen from there
From a planet around GJ 4247, the Sun would look like a star of magnitude 4.63, in the direction where our sky has the constellation Antlia. It would be visible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- 2MASS J21481628+4003593 6.75 light-years
- Gl 836.5 7.95 light-years
- CWISEP J225628.97+400227.3 9.05 light-years
- ι Peg 9.33 light-years
- Gl 829 9.52 light-years
- WISE J220905.73+271143.9 9.57 light-years
- Gl 851 10.4 light-years
- Gl 880 10.7 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.