------------------------------------------------------------------- THE ASTRONOMER Electronic Circular No 2708 2011 Jan 29 12.56UT Ed:Guy M Hurst, 16,Westminster Close, Kempshott Rise, Basingstoke, Hants, RG22 4PP,England.Telephone/FAX(01256)471074Int:+441256471074 INTERNET: GUY@TAHQ.DEMON.CO.UK Backup: gmh@wdcc1.bnsc.rl.ac.uk WORLD WIDE WEB http://www.theastronomer.org ------------------------------------------------------------------- NOVA SAGITTARII 2011 Hideo Nishimura (Miyawaki, Kakegawa, Shizuoka-ken, Japan) reports on CBET 2644 discovery of a possible magnitude 11.2 nova on two 15-s CCD frames (limiting magnitude 12.5) taken on 2011 Jan. 25.86UT using a Canon 5D camera with a 200-mm f/3.2 lens. The measured position is: RA 17h 47m 46.33s DEC -23 35' 13.1" (2000). Following an appeal for further observations, additional magnitudes for the variable were received by CBAT: 2010 May-Nov., [12.5: (Nishimura); 2011 Jan. 17, 11.5 (Nishimura); 24, 11.5 (Nishimura); 27.549, B = 12.46, V = 12.38, R_c = 10.38, I_c = 9.62 (Kiyota, using the GRAS-004 0.25-cm reflector near Mayhill), 27.844, 11.0 (Yusa). One of Yusa's image is posted at the following website URL: http://space.geocities.jp/yusastar77/PNinSgr_110128.htm. Kadota's images is at http://members.jcom.home.ne.jp/kenic-k/image/PNinSgr-20110127.jpg. Akira Arai reports that low-resolution (R about 550) spectroscopic observations obtained at the Koyama Astronomical Observatory on Jan. 28.863 UT show prominent emission lines in H-alpha, H-beta, and O I (777.4 nm) on a highly reddened continuum. These features suggest that the object is a classical nova past maximum light, highly reddened by interstellar mediums. A spectrum is at website URL http://www.cc.kyoto-su.ac.jp/~kao/blog/index.php/view/38 Guy M Hurst