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IAUC 9279: V2949 Oph = N OPH 2015 No. 2 = TCP J17344775-2409042

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                                                  Circular No. 9279
Central Bureau for Astronomical Telegrams
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V2949 OPHIUCHI = NOVA OPH 2015 No. 2 = TCP J17344775-2409042
     K. Nishiyama, Kurume, Japan; and F. Kabashima, Miyaki, 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
Oct. 11.413 UT 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 reflector
yield magnitude 11.8 and the following precise position:  R.A. =
17h34m47s.75, Decl. = -24o09'04".2 (equinox 2000.0; reference
stars from GSC-ACT catalogue).  Nothing is visible at this position
on the Digitized Sky Survey.  The variable was designated TCP
J17344775-2409042 when it was posted at the Central Bureau's TOCP
webpage.  E. Kazarovets and N. Samus note that the permanent GCVS
designation V2949 Oph has been assigned to this variable.
     Additional CCD magnitudes for TCP J17344775-2409042:  Oct.
7.405 UT, [13.4 (Nishiyama and Kabashima); 11.394, 12.0 (T. Kojima,
Tsumagoi, Gunma-ken, Japan; pre-discovery observation; Canon EOS
D60 camera + 135-mm-f.l. f/2.8 lens; communicated by S. Nakano,
Sumoto, Japan); 11.415, 12.1 (S. Fujikawa, Kan'onji, Kagawa, Japan;
independent discovery; Minolta 120-mm-f.l. f/3.5 camera lens;
position end figures 47s.36, 06".6; communicated by M. Soma,
National Astronomical Observatory of Japan); 11.490, 11.7
(Fujikawa; 400-mm-f.l. lens; position end figures 47s.77, 03".7);
11.721, 11.2 (G. Masi; remotely using a 43-cm telescope near
Ceccano, Italy; position end figures 47s.74, 04".0); 12.071, V =
11.89 (S. O'Connor, St. George, Bermuda; communicated by E. O.
Waagen, American Association of Variable Star Observers); 12.090,
B = 13.65, V = 12.04, R_c = 11.12, I_c = 10.09 (S. Kiyota,
Kamagaya, Japan; remotely with a 0.50-m astrograph near Mayhill,
NM, USA); 13.407, V = 12.9 (T. Yusa, Osaki, Japan; remotely using
a 0.43-m astrograph at Siding Spring; position end figures 47s.74,
03".7); 15.23, V = 13.6 (M. Linnolt, Ocean City, HI, USA; via
Waagen); 16.404, V = 13.43 (K. Menzies, Framingham, MA, USA; via
Waagen); 21.983, V = 12.64 (J. Hambsch, Mol, Belgium; via Waagen);
22.983, V = 12.88 (Hambsch); 22.984, I = 10.60 (Hambsch).
     K. Ayani, Bisei Astronomical Observatory, forwards a report
by Mitsugu Fujii (Kurashiki, Okayama, Japan), who obtained a
spectrogram of TCP J17344775-2409042 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.
     Additional details are given on CBET 4150.

                      (C) Copyright 2015 CBAT
2015 October 26                (9279)            Daniel W. E. Green

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