SIMBAD references

S. Nakano, Sumoto, Japan, reports the discovery by Masaki Tsuboi (Kuchita-minami, Asakita-ku, Hiroshima) of an apparent supernova (mag 15.3) on unfiltered CCD frames (limiting mag 18.2) taken on July 18.514 UT using a 0.30-m f/5.3 reflector (+ ST-2000XM camera); the new object was measured by Tsuboi to be located at R.A. = 17:21:46.1, Decl. = +75:50:45.4 (equinox 2000.0), which is 3".2 east and 10".6 south of the center of IC 4660. Nothing is visible at this position on Tsuboi's past frames taken on May 13 and 30 UT or on a red Digitized Sky Survey photograph. Nakano measures mag 14.9 and position end figures 46s.0, 44".3 (offset 1".8 east, 6".4 south of the center of IC 4660) from an image (limiting magnitude 17.8) taken by Tsuboi on July 18.658.