Star · B2IV
Peacock
Peacock is a subgiant star of spectral type B2IV in the constellation Pavo, 178.8 light-years from the Sun.
| Other names | α Pav · HIP 100751 |
|---|---|
| Constellation | Pavo |
| Distance | 178.8 light-years (54.8 pc) |
| Apparent magnitude | magnitude 1.94 |
| Absolute magnitude | magnitude −1.75 |
| Spectral type | B2IV |
| Surface temperature | 11,880 K |
| Luminosity | 806 L☉ |
| Radius | 6.7 R☉ |
| Mass | 6.15 M☉ (estimated) |
| Right ascension (J2000) | 20h 25m 38.9s |
| Declination (J2000) | −56° 44′ 06″ |
| Space velocity (relative to the Sun) | 22.5 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 1.94). Visible from the whole Southern Hemisphere and north to latitude 33° N. South of latitude 33° S it never sets. It stands highest at midnight in July, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1847. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 3.2 million years.
The Sun seen from there
From a planet around Peacock, the Sun would look like a star of magnitude 8.52, in the direction where our sky has the constellation Lynx. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- HIP 100934 3.90 light-years
- 2MASS J20334473-5635338 12.9 light-years
- HIP 99945 13.7 light-years
- HIP 99188 15.2 light-years
- HIP 103361 15.7 light-years
- HIP 99626 17.7 light-years
- HIP 103430 18.2 light-years
- ν Tel 18.6 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.