O2V

The primary O2V standard is BI 253.

Walborn02 defined the O2V class with BI 253.

Skiff08 did not flag any stars as O2V standards.

Teff(O2V) = 50906 K ; Weidner10

Mv(O2V) = -6.09 ; Martins05 (SpT vs Mv linear trend; stdev = 0.45 mag)

logg(O2V) = 3.922+-0.15 ; Martins05

Mass(O2V) = 83+9-23 Msun (Weidner10)

# Primary Standard

BI 253
  O2V((f*)): Walborn02

# Others

P871
  O2V((f*)): Walborn02