Star · A5V
Salm
Salm is a main-sequence star of spectral type A5V in the constellation Pegasus, 157.5 light-years from the Sun.
| Other names | τ Peg · HIP 115250 |
|---|---|
| Constellation | Pegasus |
| Distance | 157.5 light-years (48.3 pc) |
| Apparent magnitude | magnitude 4.58 |
| Absolute magnitude | magnitude 1.16 |
| Spectral type | A5V |
| Surface temperature | 8,320 K |
| Luminosity | 32 L☉ |
| Radius | 2.72 R☉ |
| Mass | 2.45 M☉ (estimated) |
| Right ascension (J2000) | 23h 20m 38.2s |
| Declination (J2000) | +23° 44′ 25″ |
| Space velocity (relative to the Sun) | 14.1 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 4.58). Visible from the whole Northern Hemisphere and south to latitude 66° S. North of latitude 66° 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 1869. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 2.8 million years.
The Sun seen from there
From a planet around Salm, the Sun would look like a star of magnitude 8.25, in the direction where our sky has the constellation Crater. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- HIP 114863 12.8 light-years
- HIP 115370 15.6 light-years
- HIP 113698 15.9 light-years
- HIP 116740 17.0 light-years
- HIP 114282 17.0 light-years
- Alkarab 17.2 light-years
- HIP 116277 18.3 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.