Star · M4
Gl 829
Gl 829 is a main-sequence star of spectral type M4 in the constellation Pegasus, 22.1 light-years from the Sun.
| Other names | HIP 106106 |
|---|---|
| Constellation | Pegasus |
| Distance | 22.1 light-years (6.78 pc) |
| Apparent magnitude | magnitude 10.33 |
| Absolute magnitude | magnitude 11.17 |
| Spectral type | M4 |
| Surface temperature | 3,620 K |
| Luminosity | 0.0137 L☉ |
| Radius | 0.297 R☉ |
| Mass | 0.293 M☉ (estimated) |
| Right ascension (J2000) | 21h 29m 36.9s |
| Declination (J2000) | +17° 38′ 36″ |
| Space velocity (relative to the Sun) | 42.6 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 10.33. Visible from the whole Northern Hemisphere and south to latitude 72° S. North of latitude 72° 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 2004. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 392 thousand years.
The Sun seen from there
From a planet around Gl 829, the Sun would look like a star of magnitude 3.99, in the direction where our sky has the constellation Hydra. It would be visible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- WISEPC J205628.90+145953.3 3.25 light-years
- WISE J220905.73+271143.9 5.23 light-years
- Gl 791.2 7.06 light-years
- Gl 880 8.04 light-years
- GJ 4247 9.52 light-years
- Altair 10.1 light-years
- 2MASS J21481628+4003593 10.4 light-years
- GJ 1256 10.5 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.