symbiotic binary
astronomic object class
symbiotic nova
slow irregular eruptive variable stars
T Coronae Borealis
recurring nova in the constellation Corona Borealis
SY Muscae
star in the constellation Musca
AG Draconis
star in the constellation Draco
R Aquarii
variable star in the constellation Aquarius
Southern Crab Nebula
planetary nebula in the constellation Centaurus