Star · G8
ο Oph
ο Oph is a main-sequence star of spectral type G8 in the constellation Ophiuchus, 280.1 light-years from the Sun.
| Other names | HIP 84625 |
|---|---|
| Constellation | Ophiuchus |
| Distance | 280.1 light-years (85.9 pc) |
| Apparent magnitude | magnitude 6.59 |
| Absolute magnitude | magnitude 1.92 |
| Spectral type | G8 |
| Surface temperature | 6,340 K |
| Luminosity | 14.7 L☉ |
| Radius | 3.18 R☉ |
| Mass | 1.96 M☉ (estimated) |
| Right ascension (J2000) | 17h 18m 00.6s |
| Declination (J2000) | −24° 17′ 03″ |
| Space velocity (relative to the Sun) | 36.1 km/s |
In the sky
Too faint for the naked eye (magnitude 6.59); binoculars will find it. Visible from the whole Southern Hemisphere and north to latitude 66° N. South of latitude 66° 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 1746. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 5.0 million years.
The Sun seen from there
From a planet around ο Oph, the Sun would look like a star of magnitude 9.50, in the direction where our sky has the constellation Taurus. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- ο Oph 6.95 light-years
- HIP 84314 14.5 light-years
- HIP 84198 15.4 light-years
- HIP 84135 15.8 light-years
- HIP 85176 16.1 light-years
- HIP 84416 16.9 light-years
- HIP 85882 17.8 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.