TITLE: GCN CIRCULAR NUMBER: 12059 SUBJECT: GRB 110530A: optical observations at Mt. Terskol, second epoch DATE: 11/06/01 20:03:28 GMT FROM: Alexei Pozanenko at IKI, Moscow M. Andreev, A. Sergeev, I. Sokolov (Terskol Branch of Institute of Astronomy), Yu. Bronich (IC AMER of NASU), A. Pozanenko (IKI) on behalf of larger GRB follow up collaboration report: We observed the optical afterglow of the Swift GRB 110530A (D'Avanzo et al, GCN 12046) with Zeiss-2000 telescope of Mt.Terskol observatory On May, 31 between (UT) 21:41-22:11. At the place of optical afterglow we detect extended object (elongated from SE to NW) with brightness R(gunn) ~ 22.7 calibrated against the star USNO-B1.0 1519-0265568 (RA=18 48 15.86, Dec=+61 56 15.0) and assuming R=16.08. Coordinates of South-East part of the extended object are (J2000) 18 48 16.27 +61 55 45.3 which is ~2" apart from position of the optical afterglow (J2000) 18 48 16.39 +61 55 45.16 obtained in our first epoch observations (Andreev et al. GCN 12052). The accuracy of astrometry is about 0.7" in both coordinates. One can suggest the extended object might be a bright host of GRB 110530A. The finding chart can be found at http://grb.rssi.ru/GRB110530A/grb110530_2m110531.jpg