Star · B8III
Aldhanab
Aldhanab is a giant star of spectral type B8III in the constellation Grus, 183.2 light-years from the Sun.
| Other names | γ Gru · HIP 108085 |
|---|---|
| Constellation | Grus |
| Distance | 183.2 light-years (56.2 pc) |
| Apparent magnitude | magnitude 3.00 |
| Absolute magnitude | magnitude −0.75 |
| Spectral type | B8III |
| Surface temperature | 11,310 K |
| Luminosity | 290 L☉ |
| Radius | 4.43 R☉ |
| Mass | 4.59 M☉ (estimated) |
| Right ascension (J2000) | 21h 53m 55.7s |
| Declination (J2000) | −37° 21′ 54″ |
| Space velocity (relative to the Sun) | 29.9 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 3.00). Visible from the whole Southern Hemisphere and north to latitude 53° N. South of latitude 53° S it never sets. 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 1843. 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 Aldhanab, the Sun would look like a star of magnitude 8.58, in the direction where our sky has the constellation Leo Minor. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- HIP 107779 11.1 light-years
- HIP 108371 11.2 light-years
- HIP 107652 14.0 light-years
- HIP 109549 14.6 light-years
- HIP 109149 15.1 light-years
- HIP 106586 15.9 light-years
- HIP 109901 16.4 light-years
- HIP 107362 16.6 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.