B8.5III Only B8.5III standard proposed (HD 65950 = NGC 2516B) is a peculiar Mn II star. MK78 standard: HD 65950 - B8.5III (Mn II) # Primary standard HD 65950 = NGC 2516B (J07570-6055; V=6.9) *B8.5III (Mn): MK78 B8.5IIIp: AbtMorgan69("Mn II star") B9III: Jaschek64,Jaschek78(Evans59) B8III: Houk75 B8/9III: Hartoog75 Houk75 notes "SUSPECTED VARIABLE 102576, 6.88V; |V SIN |I=30; M|N STAR". AbtMorgan69 notes "(B) This star (Mv = -1.4) shows all of the strongest Mn II lines in its spectrum; these lines are sharp - as is also the K line and the Si II doublet 4128-31; the He I lines \lambda\lambda 4471 and 4026 appear diffuse. The line \lambda 3984, identified by Bidelman with Hg II, is present."