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THE ASTRONOMER Electronic Circular No 2993      2014 Apr 02 13.27UT
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
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NOVA CYGNI 2014
Koichi Nishiyama, Kurume, Japan; and Fujio Kabashima, Miyaki, Japan, report
the discovery of a magnitude 10.9 nova in Cygnus on two 40-s unfiltered CCD
frames (limiting mag 13.1) taken around 2014 Mar. 31.79UT using a
105-mm-f.l. f/4 camera lens + CCD.
It was confirmed on five 5-s unfiltered CCD frames (limiting mag 17.6) taken
around Mar. 31.820 using a 0.40-m f/9.8 reflector (+ SBIG STL1001E camera).
The variable is located at:
RA 20h 21m 42.34s DEC +31 03' 29.6" (2000).  Nothing is visible at this
position on their past survey frames taken on Mar. 27.781 (limiting mag
13.4) or on the Digitised Sky Survey, but it is apparently visible at mag
12.4 on a pre-discovery image (limiting mag 13.5) taken on Mar. 30.769 UT. 

Ulisse Munari, Istituto Nazionale di Astrofisica, Padova Astronomical
Observatory et. al., report that on Apr. 1.060 UT they obtained a
medium-resolution spectrogram (range 647-951 nm, dispersion 0.11 nm/pixel)
of PNV J20214234+3103296 with the 0.70-m Polse di Cougnes telescope (+ Mark
I Multi-Mode Spectrograph).  The spectrum has a red slope and is that of a
classical nova close to maximum brightness and appreciably reddened.
H_alpha, and O I 777.4- and 844.6-nm, are seen in emission, perhaps along
with the Ca II.  The integrated fluxex of the H_alpha and the O I 777.4- and
844.6-nm emission lines are, respectively, 4.7, 1.0, and 1.5 in units of
10**(-12) erg cm**(-2) s**(-1).  O I 777.4-nm presents a P-Cyg profile with
a deep P-Cyg absorption that is blue-shifted by -500 km/s from the emission
component.  The FWHM of the absorption and emission components are 420 and
860 km/s, respectively.  The absorption component of the H_alpha P-Cyg
profile is less conspicuous and blue-shifted by -480 km/s from the emission
component. The FWHM of the absorption and emission components of H_alpha are
350 and 760 km/s, respectively.  On Apr. 1.099, they obtained the following
photometry for PNV J20214234+3103296:  B = 12.28, V = 11.32, R_c = 10.68,
I_c = 10.03.  The large B-V colour supports a significant reddening
affecting this nova.

Guy M Hurst