BD+28 4211

alpha(2000) = 21h 51m 11.07s , delta(2000) = +28d 51' 51.8''

V = 10.51, B-V = -0.34, Spectral type: Op

 

Field is 10.0 x 10.0 arcmin [Faint red companion 2.8" at PA 240deg.]

Oke (1990) data (1A steps 3200-4700A; 2A steps 4702-9200A) + IUE (1.2A steps 2000A; 1.8A steps 2000-3200A). Note the limitations of these Oke data; see Cautionary Note.

ftp access to visible wavelength data files for this standard
ftp access to UV+visible wavelength data files for this standard