Star · A1V
HIP 85666
HIP 85666 is a main-sequence star of spectral type A1V in the constellation Ophiuchus, 305.3 light-years from the Sun.
| Constellation | Ophiuchus |
|---|---|
| Distance | 305.3 light-years (93.6 pc) |
| Apparent magnitude | magnitude 6.47 |
| Absolute magnitude | magnitude 1.61 |
| Spectral type | A1V |
| Surface temperature | 9,480 K |
| Luminosity | 24.6 L☉ |
| Radius | 1.84 R☉ |
| Mass | 2.27 M☉ (estimated) |
| Right ascension (J2000) | 17h 30m 22.7s |
| Declination (J2000) | +11° 55′ 26″ |
| Space velocity (relative to the Sun) | 27.2 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 6.47). Visible from the whole Northern Hemisphere and south to latitude 78° S. North of latitude 78° N 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 1721. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 5.4 million years.
The Sun seen from there
From a planet around HIP 85666, the Sun would look like a star of magnitude 9.69, in the direction where our sky has the constellation Lepus. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- HIP 86373 17.4 light-years
- HIP 85515 18.1 light-years
- HIP 86179 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.