Electronic Telegram No. 4013 Central Bureau for Astronomical Telegrams INTERNATIONAL ASTRONOMICAL UNION CBAT Director: Daniel W. E. Green; Hoffman Lab 209; Harvard University; 20 Oxford St.; Cambridge, MA 02138; U.S.A. e-mail: cbatiau@eps.harvard.edu (alternate cbat@iau.org) URL http://www.cbat.eps.harvard.edu/index.html Prepared using the Tamkin Foundation Computer Network DWARF NOVA IN GEMINI T. Morokuma, Institute of Astronomy, University of Tokyo; N. Tominaga, E. Matsumoto, T. Shibata, and M. Yamanaka, Konan University; and M. Tanaka, National Astronomical Observatory of Japan -- on behalf of the Kiso Supernova Survey (KISS) collaboration -- report the discovery of a new transient object (mag 16.6) on a g-band CCD image (limiting mag 19.9) taken on Oct. 27.72 UT with the Kiso Wide Field Camera (field-of-view 2.1 deg x 2.1 deg) on the 1.05-m Schmidt telescope at the Kiso Observatory. The new object is located at R.A. = 7h55m40s.62, Decl. = +26d46'18".4 (equinox 2000.0), which is the same position as a blue object in the Sloan Digital Sky Survey (SDSS J075540.64+264618.6). T. Nakaoka, M. Uemura, K. Kawaguchi, Y. Kanda, K. S. Kawabata, K. Takaki, and M. Kawabata, Hiroshima University; and M. Yamanaka, Konan University -- on behalf of the KISS collaboration -- report that they obtained a low-resolution optical spectrum on Oct. 28.8 UT with the 1.5-m Kanata telescope (+ HOWPol) at the Higashi-Hiroshima Observatory. The spectrum shows a blue continuum and prominent emission lines in Balmer series. The FWHM and equivalent widths of the H-alpha, H-beta, and H-gamma emission lines are about 1500 km/s and 4.8 nm, 2100 km/s and 5.8 nm, and 1600 km/s and 3.3 nm, respectively. Other emission lines of He II 468.6-nm, and He I 667.8-, 587.6-, and 447.1-nm, are also confirmed. These suggest that the object would be classified as a dwarf nova. NOTE: These 'Central Bureau Electronic Telegrams' are sometimes superseded by text appearing later in the printed IAU Circulars. (C) Copyright 2014 CBAT 2014 November 10 (CBET 4013) Daniel W. E. Green