------------------------------------------------------------------- THE ASTRONOMER Electronic Circular No 3116 2015 Oct 16 19.50UT 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 OPHIUCHI 2015 No. 2 Koichi Nishiyama and Fujio Kabashima, Japan, report their discovery of a new variable star (mag 11.8) on two 40-s unfiltered CCD frames (limiting magnitude 13.3) taken around 2015 Oct. 11.412UT using a 135-mm-f.l. f/4 camera lens (+ FLI 09000 camera). Four confirming 40-s unfiltered CCD frames (limiting magnitude 18.1) taken around Oct 11.473 using a 0.50-m f/6.8 reflector yield magnitude 11.8 and the following precise position: RA 17h 34m 47.75s DEC -24 09' 04.2" (2000.0. Nothing is visible on the Digitised Sky Survey. The variable was designated TCP J17344775-2409042 when it was posted at the Central Bureau's TOCP webpage. Additional CCD magnitudes Oct. 11.394, 12.0 (T. Kojima, Japan; pre-discovery observation; Canon EOS D60 camera + 135-mm-f.l. f/2.8 lens); 11.415, 12.1 (Shigehisa Fujikawa, Japan; independent discovery; Minolta 120-mm-f.l. f/3.5 camera lens; position end figures 47s.36, 06".6); 12.071, V = 11.89 (S. O'Connor, St. George, Bermuda); 12.090, B = 13.65, V = 12.04, R_c = 11.12, I_c = 10.09 (S. Kiyota, Japan; remotely with an iTelescope 0.50-m f/4.5 CDK astrograph + FLI-PL11002M camera near Mayhill, NM, USA; image posted at: http://meineko.sakura.ne.jp/ccd/TCP_J17344775-2409042.jpg) K. Ayani, Bisei Astronomical Observatory, forwards a report by Mitsugu Fujii (Kurashiki, Okayama, Japan), who obtained a spectrogram on Oct. 12.421 UT with a 0.4-m telescope, in which he found an H-alpha emission line with a P-Cyg profile, from which he estimated an expansion velocity of about 700 km/s. He also noted a very deep Na I D absorption line whose equivalent width was about 1.1 nm, and the spectrum implies heavy interstellar reddening. Fujii's spectrogram is posted at website URL http://otobs.org/FBO/etc/tcp_oph.htm. CBET 4150 issued 2015 October 14 Guy M Hurst