TITLE: GCN CIRCULAR NUMBER: 16674 SUBJECT: GRB 140809A (FERMI trigger 429246673): MASTER follow-up inspection DATE: 14/08/09 19:47:19 GMT FROM: Vladimir Lipunov at Moscow State U/Krylov Obs V.Shumkov, D.Denisenko, E. Gorbovskoy, V. Lipunov, M.Pruzhinskaya, V.Kornilov, D.Kuvshinov, N.Tyurina, P.Balanutsa, A.Kuznetsov, V.V.Chazov Lomonosov Moscow State University, Sternberg Astronomical Institute, Moscow State University K.Ivanov, S.Yazev, N.M.Budnev, O.Gres, O.Chuvalaev, V.A.Poleshchuk Irkutsk State University V.Yurkov, Yu.Sergienko, D.Varda, E.Sinyakov Blagoveschensk Educational State University, Blagoveschensk A. Tlatov, A.V. Parhomenko, D. Dormidontov, V.Sennik Kislovodsk Solar Station of the Pulkovo Observatory V.Krushinsky, I.Zalozhnih, A. Popov Ural Federal University, Yekaterinburg, Kourovka Hugo Levato and Carlos Saffe Instituto de Ciencias Astronomicas, de la Tierra y del Espacio (ICATE) Claudio Mallamaci, Carlos Lopez and Federico Podest Observatorio Astronomico Felix Aguilar (OAFA) MASTER II robotic telescope (MASTER-Net: http://observ.pereplet.ru) located in Kislovodsk was starting survey on the FERMI GRB140809A error-box (ra=11 15 14 dec=+71 00 36 r=6.040000) 52916 sec after trigger time at 2014-08-09 17:53:06 UT. During the observations of the error box of possible GRB 140809A (Fermi trigger 429246673) MASTER-Tunka auto-detection system discovered OT source at (RA, Dec) = 11h 46m 55.24s +66d 09m 59.3s on 2014-08-09.63454 UT ( Shumkov et al., Atel #6379). The OT unfiltered magnitude is 17.0m (limit 19.1m). The OT is seen in 6 images. There is no minor planet at this place. We have reference image without OT on 2014-04-21.58762 UT with unfiltered magnitude limit 20.0m. The new object is located 1.5" east and 17" north of the center of galaxy PGC 36760 = SDSS J114654.97+660942.3 (g=15.34 r=14.73 i=14.42) with z=0.0413. Discovery and reference images are available at: http://master.sai.msu.ru/static/OT/114655.24660959.3.png It is just a chance coincidence possible. Spectral and photometric confirmation is requested. Observations in X-rays and other wave bands are also strongly encouraged. The OT search is continuated. This message can be cited.