2.56
Apparent Mag366
Distance (ly)O9.5Vnn
Spectral Type34,000
Temperature (K)Zeta Ophiuchi is a hot runaway O-type star that was likely ejected from its birth cluster by a supernova. It creates a spectacular bow shock.
Stellar Data
Apparent Magnitude2.56
Absolute Magnitude-3.2
Distance366 light-years
Spectral TypeO9.5Vnn
Temperature34,000 K
Luminosity91,000 L☉
Radius8.5 R☉
Mass20 M☉
Right Ascension16h 37m 09.5s
Declination-10° 34′ 01.5″
ConstellationOphiuchus
Notable Facts
- Zeta Ophiuchi was likely ejected by a companion's supernova
- It creates a visible bow shock as it moves through interstellar gas
- It is one of the few naked-eye O-type stars