Observation data Epoch J2000.0 (ICRS) Equinox J2000.0 (ICRS) | |
---|---|
Constellation | Scorpius |
Right ascension | 17h 57m 32.93830s[1] |
Declination | −30° 43′ 09.96739″[1] |
Apparent magnitude (V) | 7.9[2] max. |
Database references | |
SIMBAD | data |
V1309 Scorpii (also known as V1309 Sco) is a contact binary that merged into a single star in 2008 in a process known as a luminous red nova. It was the first star to provide conclusive evidence that contact binary systems end their evolution in a stellar merger. Its similarities to V838 Monocerotis and V4332 Sagittarii allowed scientists to identify these stars as merged contact binaries as well.[3]
GaiaDR2
was invoked but never defined (see the help page).gcvs
was invoked but never defined (see the help page).