Star · A2
79 Peg
79 Peg is a main-sequence star of spectral type A2 in the constellation Pegasus, 271.4 light-years from the Sun.
| Other names | HIP 117500 |
|---|---|
| Constellation | Pegasus |
| Distance | 271.4 light-years (83.2 pc) |
| Apparent magnitude | magnitude 5.95 |
| Absolute magnitude | magnitude 1.35 |
| Spectral type | A2 |
| Surface temperature | 8,260 K |
| Luminosity | 26.8 L☉ |
| Radius | 2.52 R☉ |
| Mass | 2.32 M☉ (estimated) |
| Right ascension (J2000) | 23h 49m 39.4s |
| Declination (J2000) | +28° 50′ 32″ |
| Space velocity (relative to the Sun) | 27.1 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 5.95). 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 1755. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 4.8 million years.
The Sun seen from there
From a planet around 79 Peg, the Sun would look like a star of magnitude 9.43, 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):
- HIP 118075 10.0 light-years
- HIP 117835 10.2 light-years
- HIP 116783 14.4 light-years
- HIP 117785 15.4 light-years
- HIP 117393 17.3 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.