Star · B9II
HIP 85783
HIP 85783 is a bright giant star of spectral type B9II in the constellation Ophiuchus, 454.6 light-years from the Sun.
| Constellation | Ophiuchus |
|---|---|
| Distance | 454.6 light-years (139.4 pc) |
| Apparent magnitude | magnitude 6.05 |
| Absolute magnitude | magnitude 0.33 |
| Spectral type | B9II |
| Surface temperature | 11,020 K |
| Luminosity | 102 L☉ |
| Radius | 2.78 R☉ |
| Mass | 3.41 M☉ (estimated) |
| Right ascension (J2000) | 17h 31m 44.4s |
| Declination (J2000) | −26° 16′ 11″ |
| Space velocity (relative to the Sun) | 15.8 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 6.05). Visible from the whole Southern Hemisphere and north to latitude 64° N. South of latitude 64° 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 1571. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 8.1 million years.
The Sun seen from there
From a planet around HIP 85783, the Sun would look like a star of magnitude 10.55, in the direction where our sky has the constellation Taurus. 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.