5.13
Apparent Mag1,500
Distance (ly)O6Vpe
Spectral Type39,000
Temperature (K)Theta Orionis C is the most massive star in the Trapezium Cluster at the heart of the Orion Nebula. It provides most of the ultraviolet radiation that makes the nebula glow.
Stellar Data
Apparent Magnitude5.13
Absolute Magnitude-3.2
Distance1,500 light-years
Spectral TypeO6Vpe
Temperature39,000 K
Luminosity200,000 L☉
Radius11 R☉
Mass33 M☉
Right Ascension05h 35m 16.5s
Declination-05° 23′ 16.5″
ConstellationOrion
Notable Facts
- Theta Orionis C provides most of the UV radiation illuminating the Orion Nebula
- It is the most massive star in the famous Trapezium Cluster
- The star has a surface temperature of about 39,000 K