6.06
Apparent Mag6,600
Distance (ly)O8III/I+O7.5V
Spectral Type33,000
Temperature (K)Plaskett's Star is one of the most massive binary systems known, with a combined mass over 100 solar masses. It was discovered by John Plaskett in 1922.
Stellar Data
Apparent Magnitude6.06
Absolute Magnitude-6.21
Distance6,600 light-years
Spectral TypeO8III/I+O7.5V
Temperature33,000 K
Luminosity300,000 L☉
Radius15 R☉
Mass54.2 M☉
Right Ascension06h 37m 24.0s
Declination+06° 08′ 07.3″
ConstellationMonoceros
Notable Facts
- Plaskett's Star has a combined mass over 100 solar masses
- It was discovered by John Plaskett in 1922
- Both components are extremely luminous O-type stars