Star · B5IV
30 Peg
30 Peg is a subgiant star of spectral type B5IV in the constellation Pegasus, 1,383 light-years from the Sun.
| Other names | HIP 110298 |
|---|---|
| Constellation | Pegasus |
| Distance | 1,383 light-years (424.1 pc) |
| Apparent magnitude | magnitude 5.37 |
| Absolute magnitude | magnitude −2.77 |
| Spectral type | B5IV |
| Surface temperature | 10,610 K |
| Luminosity | 1,660 L☉ |
| Radius | 12.1 R☉ |
| Mass | 7.56 M☉ (estimated) |
| Right ascension (J2000) | 22h 20m 27.6s |
| Declination (J2000) | +5° 47′ 22″ |
| Space velocity (relative to the Sun) | 38.3 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 5.37). Visible from the whole Northern Hemisphere and south to latitude 84° 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 643. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 25 million years.
The Sun seen from there
From a planet around 30 Peg, the Sun would look like a star of magnitude 12.97, in the direction where our sky has the constellation Sextans. It would be invisible to the naked eye.
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.