Star · K0III
β Aps
β Aps is a giant star of spectral type K0III in the constellation Apus, 155.7 light-years from the Sun.
| Other names | HIP 81852 |
|---|---|
| Constellation | Apus |
| Distance | 155.7 light-years (47.7 pc) |
| Apparent magnitude | magnitude 4.23 |
| Absolute magnitude | magnitude 0.84 |
| Spectral type | K0III |
| Surface temperature | 4,600 K |
| Luminosity | 67.5 L☉ |
| Radius | 12.9 R☉ |
| Mass | 3.03 M☉ (estimated) |
| Right ascension (J2000) | 16h 43m 04.6s |
| Declination (J2000) | −77° 31′ 03″ |
| Space velocity (relative to the Sun) | 106.9 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 4.23). Visible from the whole Southern Hemisphere and north to latitude 12° N. South of latitude 12° S it never sets.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1870. 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 β Aps, the Sun would look like a star of magnitude 8.22, in the direction where our sky has the constellation Camelopardalis. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- γ Aps 4.70 light-years
- HIP 75813 19.0 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.