Discovered by Zwicky Transient Facility (ZTF)" on 2019/01/22.555 as a transient suspected to be a supernova. LBV's are a type of variable star. They are massive unstable supergiant and some…
Supernova impostor in NGC5194 ( M 51 )

Discovered by Zwicky Transient Facility (ZTF)" on 2019/01/22.555 as a transient suspected to be a supernova. LBV's are a type of variable star. They are massive unstable supergiant and some…