12.5
Apparent Mag5,000
Distance (ly)M0-2III+WD
Spectral Type3,800
Temperature (K)RS Ophiuchi is a recurrent nova that erupted most recently in 2021. It consists of a red giant feeding a white dwarf near the Chandrasekhar limit.
Stellar Data
Apparent Magnitude12.5
Absolute Magnitude-1
Distance5,000 light-years
Spectral TypeM0-2III+WD
Temperature3,800 K
Luminosity1,000 L☉
Radius60 R☉
Mass0.68 M☉
Right Ascension17h 50m 13.2s
Declination-06° 42′ 28.5″
ConstellationOphiuchus
Notable Facts
- RS Ophiuchi erupted most recently in August 2021
- The white dwarf may be approaching the Chandrasekhar limit
- Previous eruptions occurred in 1898, 1933, 1958, 1967, 1985, and 2006