Confirmation of the Luminous Blue Variable Status of MWC 930

Figure 7

A Hertzsprung-Russell diagram with positions of some LBVs. The solid lines show the boundaries of the visual minimum brightness instability strip for LBVs at which the stellar rotation velocity equals the breakup velocity [8]. The dashed line represents the Humphreys-Davidson stability limit [1]. Fundamental parameters of AG Car and HR Car at a visual minimum are taken from [8]. Luminosity is plotted in the solar units and temperature in Kelvins.