OJ 287

(PKS 0851+202, PG 0851+202)

Coordinates (J2000)
R.A.: 08 54 48.9,   Dec.: +20 06 31
z = 0.306



Field of view is 15'x15'


Johnson-Cousins photometry of comparison stars

star U B V Rc Ic
4     14.18 (0.04) 13.74 (0.04) 13.28 (0.04)
10     14.60 (0.05) 14..34 (0.05) 14.03 (0.05)
11     14.94 (0.04) 14.65 (0.05) 14.32 (0.05)
C1     15.88 (0.07) 15.50 (0.07) 15.08 (0.07)
C2     16.12 (0.08) 15.66 (0.08) 15.21 (0.08)

 

hotometric calibrations above made by the Perugia University Astronomical Observatory:
(Fiorucci, M. & Tosti, G. 1996, A&AS 116, 403)

  

-Perugia Observatory      -WEBT collaboration