GCN Circular 13273
V. Rumyantsev, K. Antonyuk (CrAO), A. Pozanenko (IKI) report on behalf of larger GRB follow-up collaboration: We observed the field of GRB 120422A (Troja et al., GCN 13243) with AZT-11 telescope of CrAO observatory on April 22 (UT) 18:54:58 - 19:55:14 under mean seeing of 2.8 arcsec and with Shajn telescope of CrAO observatory on April 23 (UT) 18:22:50 - 19:29:02 under mean seeing of 1.8 arcsec. In both epochs we cannot resolve the afterglow (Cucchiara et al., GCN 13245; Kuin et al., GCN 13248) from possible host galaxy SDSS J090738.51+140108.3 and we used aperture photometry of host + afterglow. A preliminary photometry is based on the USNO-B1.0 star 1040-0165213 (09 07 37.94 +14 00 43.0) assuming R=16.37: T0+ Filter, Exposure, OT+host, uplim (3 sigma) (mid, d) (s) 0.5091 R 20x180 20.5 +/-0.3 20.8 1.4891 R 60x60 20.74 +/-0.03 23.9 From the above photometry of the host + afterglow it is evident that in both epochs there is apparent admixture of the afterglow in the brightness of the galaxy SDSS J090738.51+140108.3 which have a brightness of R ~ 21.0. We are grateful for CCD PL4240 provided by ISON for Shajn telescope.