Star · K1II
HIP 82723
HIP 82723 is a bright giant star of spectral type K1II in the constellation Ara, 1,894 light-years from the Sun.
| Constellation | Ara |
|---|---|
| Distance | 1,894 light-years (580.6 pc) |
| Apparent magnitude | magnitude 6.49 |
| Absolute magnitude | magnitude −2.33 |
| Spectral type | K1II |
| Surface temperature | 3,850 K |
| Luminosity | 2,510 L☉ |
| Radius | 113 R☉ |
| Mass | 8.51 M☉ (estimated) |
| Right ascension (J2000) | 16h 54m 31.6s |
| Declination (J2000) | −49° 42′ 39″ |
| Space velocity (relative to the Sun) | 33.5 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 6.49). Visible from the whole Southern Hemisphere and north to latitude 40° N. South of latitude 40° S it never sets. It stands highest at midnight in June, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 132. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 34 million years.
The Sun seen from there
From a planet around HIP 82723, the Sun would look like a star of magnitude 13.65, in the direction where our sky has the constellation Auriga. 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.