BL Lacertae = 2200+420

EAST


WEST

DSS image: 15 x 15 arcmin

R.A. (J2000.0)= 22 02 43.3

Dec. (J2000.0)= +42 16 40

Recommended standard stars

Star B Err B V Err V R Err R I Err I
1 14.68 0.04 12.90 0.04 11.99 0.04 11.12 0.05
2 15.20 0.05 14.26 0.06 13.79 0.05 13.32 0.05
3 15.81 0.06 14.40 0.06 13.73 0.06 13.07 0.06