2012CBET.3273....1N

Koichi Nishiyama, Kurume, Japan; and Fujio Kabashima, Miyaki, Japan, report their discovery of a possible nova (mag 12.6) on two 40-s unfiltered CCD frames (limiting magnitude 13.8) taken around Oct. 20.429 UT using a 105-mm f/4 camera lens (+ SBIG STL6303E camera); they confirmed the new object on five 3-s unfiltered CCD frames (limiting magnitude 18.5) taken around Oct. 20.435 using a Meade 200R 0.40-m f/9.8 reflector (+ SBIG STL1001E camera). The new object is located at R.A. = 18:52:34.96, Decl. = -0deg18'42".3 (equinox 2000.0). The variable was designated PNV J18523496-0018423 when it was posted at the Central Bureau's TOCP webpage. Additional CCD magnitudes for the new variable (unfiltered unless noted otherwise): Oct. 12.470, [14.1 (Nishiyama and Kabashima); 14.472, [14.1 (Nishiyama and Kabashima); 15.428, 13.2 (Nishiyama and Kabashima; pre-discovery; limiting mag 14.1); 18.434, 12.3 (Nishiyama and Kabashima; pre-discovery; limiting mag 14.1); 19.421, 12.1 (A. Takao, Kitakyushu, Japan; 100-mm f/4 camera lens + STL-6303E camera; apparent pre-discovery); 19.434, 12.2 (Nishiyama and Kabashima; pre-discovery); 20.524, 12.1 (T. Noguchi, Katori, Chiba-ken, Japan; 0.23-m f/6.3 Schmidt-Cassegrain reflector + BITRAN BT-11E camera; limiting mag 15.0; position end figures 34s.95, 42".7; communicated by S. Nakano, Sumoto, Japan; image posted at website URL http://park8.wakwak.com/~ngc/images/PNV_J18523496-0018423.jpg); 20.730, 11.4 (Gianluca Masi, Francesca Nocentini, and Patrick Schmeer; remotely imaged with the 43.2-cm f/6.8 reflector of the Virtual Telescope Project at Ceccano, Italy; position end figures 34s.98, 42".4; reference stars from the NOMAD catalogue); 20.871, 11.2 (Luca Buzzi and Federica Luppi, Varese, Italy; 0.38-m f/6.8 reflector; position end figures 34s.96, 42".5; reference stars from the UCAC-4 catalogue; image posted at website URL http://www.astrogeo.va.it/pub/TOCP/PNV_J18523496-0018423.jpg); 21.057, B = 17.31, V = 14.10, R_c = 12.11, I_c = 10.23 (Seiichiro Kiyota, Tsukuba, Japan; remotely with a 43-cm astrograph + FLI PL-6303E CCD camera of the iTelescope network near Mayhill, NM, USA); 21.071, V = 13.2 ± 0.1 (R. A. Koff, Bennett, CO, USA; Meade 0.25-m f/10 reflector + Apogee U-47 camera; limiting magnitude 15.8; position end figures 34s.99, 42".5; UCAC3 reference stars; nearest star located at position end figures 34s.91, 42".5; little variation beyond error range of ± 0.03 mag in 45 min of monitoring; image posted at website URL http://antelopehillsobservatory.org/SNpictures/PNVJ18523496-0018423final.jpg); 22.128, V = 14.43 (Gustav Holmberg, Lund, Sweden; remotely using a Sierra Stars 0.37-m Cassegrain reflector located at the Winer Observatory near Sonoita, AZ, U.S.A.); 22.762, 11.8 (Masi et al.); 26.129, B = 17.2, V = 14.51, R_c = 12.50, I_c = 9.98 (T. Yusa, Osaki, Japan; remotely using a 0.25-m f/3.4 hyperbolic astrograph + SBIG ST-10XME camera at the RAS Observatory, iTelescope network, near Mayhill; image posted at the following website URL: http://space.geocities.jp/yusastar77/supernova/nvAqr2012_121026.htm.