Star · A0V
HIP 81873
HIP 81873 is a main-sequence star of spectral type A0V in the constellation Triangulum Australe, 312.7 light-years from the Sun.
| Constellation | Triangulum Australe |
|---|---|
| Distance | 312.7 light-years (95.9 pc) |
| Apparent magnitude | magnitude 6.02 |
| Absolute magnitude | magnitude 1.11 |
| Spectral type | A0V |
| Surface temperature | 9,690 K |
| Luminosity | 40.3 L☉ |
| Radius | 2.26 R☉ |
| Mass | 2.61 M☉ (estimated) |
| Right ascension (J2000) | 16h 43m 22.1s |
| Declination (J2000) | −67° 25′ 57″ |
| Space velocity (relative to the Sun) | 14.0 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 6.02). Visible from the whole Southern Hemisphere and north to latitude 23° N. South of latitude 23° S it never sets. It stands highest at midnight in May, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1713. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 5.5 million years.
The Sun seen from there
From a planet around HIP 81873, the Sun would look like a star of magnitude 9.74, 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):
- HIP 81174 12.7 light-years
- HIP 81435 14.8 light-years
- HIP 84248 15.8 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.