2010CBET.2261....1N

Koichi Nishiyama, Kurume, Japan; and Fujio Kabashima, Miyaki, Japan, report their discovery of a possible Milky Way nova (mag 11.2) on two 40-s unfiltered CCD frames (limiting magnitude 13.2) taken around Apr. 23.782 UT using a 105-mm f/4 camera lens (+ SBIG STL6303E camera). They used five 2-s unfiltered CCD frames (limiting magnitude 17.0) taken around Apr 23.791 with a Meade 200R 0.40-m f/9.8 reflector (+ SBIG STL1001E camera) to measure the following precise position for the variable: R.A. = 17:53:02.98, Decl. = -28:12:19.4 (equinox 2000.0). Nothing is visible at this position on their survey frames taken on Apr. 2.831 (limiting mag 12.9) and 16.749 (limiting mag 13.1), nor on the Digitized Sky Survey from a red plate taken on 1996 Sept. 12 (limiting mag 17.5). A USNO-B1.0-catalogue star of red mag 17.4 has position end figures 03s.11, 19".0. A confirming image by Nishiyama and Kabashima with the 0.40-m reflector on Apr 24.673 yields mag 11.6 and position end figures 03s.00, 19".3. After being alerted by Nishiyama and Kabashima, T. Yusa (Osaki, Japan) obtained a co-added unfiltered CCD image (limiting mag 16.5) with a 0.30-m f/8.2 Cassegrain reflector on Apr. 24.660, yielding mag 11.1 and position end figures 02s.98, 19".3.