|
Individual sheet: Cyg OB2-12
|
Spectral type(s): B3-4Ia+ + ?
Multiplicity:
Binary system
Period(s): undetermined (at least several years)
Orbital solution: no
Ref: Caballero-Nieves et al. 2014
Comments:
Identified as a non-thermal radio emitter thanks to measurements at low frequencies (Benaglia et al. 2020).
This bright hypergiant may be a candidate for a future LBV phase. A visual companion at about 60 mas has been identified thanks to measurements with the FGS on-board the HST (Caballero-Nieves et al. 2014).