Electronic Telegram No. 4008
Central Bureau for Astronomical Telegrams
INTERNATIONAL ASTRONOMICAL UNION
CBAT Director:  Daniel W. E. Green; Hoffman Lab 209; Harvard University;
 20 Oxford St.; Cambridge, MA  02138; U.S.A.
e-mail:  cbatiau@eps.harvard.edu (alternate cbat@iau.org)
URL http://www.cbat.eps.harvard.edu/index.html
Prepared using the Tamkin Foundation Computer Network


SUPERNOVA 2014dq IN ESO 467-G51 = PSN J22231609-2858318
     G. Bock, Runaway Bay, Gold Coast, Queensland, Australia, reports the
discovery of an apparent supernova (red mag 16.8) on a 30-s unfiltered CCD
image (limiting mag 17.5) taken by himself on Oct. 20.59 UT with a 35-cm
Meade LX200R reflector (+ ST10 camera) in the course of the Backyard
Observatory Supernova Search.  The new object is located at R.A. =
22h23m16s.09, Decl. = -28d58'31".8 (equinox 2000.0; reference stars from
USNO-B and UCAC4 catalogues), which is 6".8 west and 19".7 north of the
nucleus of the galaxy ESO 467-G51.  Nothing is visible at this position on
Digitized Sky Survey red and infrared images (limiting red magnitude > 19).
Several confirming unfiltered CCD images showing the variable at mag 16.2
were taken by Bock on Oct. 22.49.  The variable was designated PSN
J22231609-2858318 when it was posted at the Central Bureau's TOCP webpage
and is here designated SN 2014dq based on the spectroscopic confirmation
reported below.  After it was posted on the TOCP, it was noted that this
supernova was independently discovered at magnitude V = 16.9 (position
end figures 16s.12, 30".8) by the All-Sky Automated Survey for Supernovae
on Oct. 19.09 using the Cassius double 14-cm telescope at Cerro Tololo
(see website URL http://www.astronomerstelegram.org/?read=6592), with
nothing visible at this position on images taken on Oct. 13.0 (limiting V
mag 17.5).

     P. Challis, Harvard-Smithsonian Center for Astrophysics (CfA), on behalf
of the CfA Supernova Group, reports that a spectrogram (range 350-760 nm) of
SN 2014dq was obtained on Oct. 20 UT by P. Berlind with the F. L.  Whipple
Observatory 1.5-m telescope (+ FAST).  The spectrum has a very blue continuum
with emission of H-alpha, H-beta, H-gamma, H-delta, and He II 468.6-nm.
Cross-correlation with a library of supernova spectra using the "Supernova
Identification" code (SNID; Blondin and Tonry 2007, Ap.J. 666, 1024) shows a
reasonable match to the spectrum of the type-II supernova 2005cs.


NOTE: These 'Central Bureau Electronic Telegrams' are sometimes
      superseded by text appearing later in the printed IAU Circulars.

                         (C) Copyright 2014 CBAT
2014 October 29                  (CBET 4008)              Daniel W. E. Green