TITLE: GCN CIRCULAR NUMBER: 11961 SUBJECT: GRB 110422A: NOT optical observation DATE: 11/04/22 22:19:20 GMT FROM: Dong Xu at Weizmann Inst Dong Xu (WIS), Anders Thygesen, Fatemeh Kiaee (NOT), and Pall Jakobsson (U. Iceland) report on behalf of a large collaboration: We observed the field of GRB 110422A (Mangano et al., GCN 11957) at the Nordic Optical Telescope (NOT) equipped with ALFOSC. We obtained 2x300 s R-band images with a median time 21:11:33.3 UT (i.e., 5.49397 hr after the BAT trigger). The images, with an airmass ~1.5, were taken under the windy condition. A new optical source is detected at coordinates (RA,Dec)(J2000.0) = (07:28:11.06, +75:06:25.00) (error-radius: ~ 0.1 arcsec), being consistent with the finding in Elunko et al. (GCN 11958) and Gres et al. (GCN 11960). Note that this position is southwest of and outside the XRT error circle reported at http://www.swift.ac.uk/sper/. The source has R~20.0 mag, calibrated with the #1651-0050630 star (R1=19.08) in the USNO B1 catalog. Further observation is planned as long as the weather could stay observable at La Palma.