Star · K0 III
ν Oph
ν Oph is a giant star of spectral type K0 III in the constellation Ophiuchus, 142.4 light-years from the Sun. It is orbited by 2 confirmed exoplanet(s).
| Other names | nu Oph · HIP 88048 |
|---|---|
| Constellation | Ophiuchus |
| Distance | 142.4 light-years (43.7 pc) |
| Apparent magnitude | magnitude 3.32 |
| Absolute magnitude | magnitude 0.12 |
| Spectral type | K0 III |
| Surface temperature | 4,890 K |
| Luminosity | 78.5 L☉ |
| Radius | 12.2 R☉ |
| Mass | 2.61 M☉ |
| Age | 0.7 billion years |
| Metallicity [Fe/H] | 0.10 |
| Right ascension (J2000) | 17h 59m 01.6s |
| Declination (J2000) | −9° 46′ 25″ |
| Space velocity (relative to the Sun) | 27.4 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 3.32). Visible from the whole Southern Hemisphere and north to latitude 80° N. 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 1884. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 2.5 million years.
The Sun seen from there
From a planet around ν Oph, the Sun would look like a star of magnitude 8.03, in the direction where our sky has the constellation Orion. It would be invisible to the naked eye.
Planets
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
Stellar parameters from the NASA Exoplanet Archive; position and brightness from the HYG / AT-HYG catalogue.