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IAUC 8497: V382 Nor = N Nor 2005; Poss. SN IN NGC 4656

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                                                  Circular No. 8497
Central Bureau for Astronomical Telegrams
Mailstop 18, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
IAUSUBS@CFA.HARVARD.EDU or FAX 617-495-7231 (subscriptions)
URL http://cfa-www.harvard.edu/iau/cbat.html  ISSN 0081-0304
Phone 617-495-7440/7244/7444 (for emergency use only)

     W. Liller, Vina del Mar, Chile, reports his discovery of a
possible nova on hypersensitized Technical Pan films taken with an
85-mm f/1.4 Nikon lens and an orange filter.  Liller gave the
position of the new object as R.A. = 16h19m.8, Decl. = -51o35'
(equinox 2000.0), and he provided the following red magnitudes:
Mar. 9.37 UT, [11; 13.309, 9.4; 18.320, 8.9.  Liller additionally
obtained the following CCD magnitudes with a 0.20-m Schmidt camera:
Mar. 20.326, V = 10.10 +/- 0.05, B = 10.90 +/- 0.06; Mar. 22.302, V
= 10.85 +/- 0.03.  L. A. G. Monard, Pretoria, S. Africa, reports
the following precise position of this object from an unfiltered
CCD image taken by himself:  R.A. = 16h19m45s.67, Decl. =
-51o36'07".2.  Magnitudes from Monard:  Mar. 20.038 UT, V = 9.8;
20.040, R_c = 8.5.  N. N. Samus and E. Kazarovets, Institute of
Astronomy, Russian Academy of Sciences, inform us that the
designation V382 Nor has been given to this nova.
     A. Ederoclite, E. Mason, and T. H. Dall, European Southern
Observatory (ESO), report spectroscopic confirmation of Liller's
nova with the 3.6-m ESO telescope (+ HARPS; range 380-690 nm;
resolution 100000).  The nova appears dominated by very strong
H_alpha emission.  Low-ionization emissions lines from Fe II
(multiplets 27, 28, 37, 38, 42, 48, 49, and 74) and Na I are
clearly visible.  The Balmer and Fe II lines are flanked by weak
P-Cyg profiles that indicate an average expansion velocity of 1100
+/- 100 km/s.  The Na I interstellar lines appear saturated, thus
suggesting a high absorption/reddening.

     D. Rich, Hampden, ME, reports his discovery of a possible
supernova (mag about 18.0) on unfiltered CCD frames taken with a
0.31-m reflector on Mar. 21.14 and 22.15 UT.  The new object is
located at R.A. = 12h43m45s.84, Decl. = +32o06'15".0 (equinox
2000.0), which is about 151" west and 230" south of the center of
NGC 4656.  Nothing is visible at this location on CCD frames taken
by Rich on 2004 Feb. 27.24 and Mar. 29.25 (limiting mag about 18.7)
or on Palomar Sky Survey plates from 1990 (limiting red mag 20.1
and limiting blue mag 19.7).  H. Yamaoka, Kyushu University, writes
that K. Itagaki, Teppo-cho, Yamagata, Japan, confirmed the new
object on his unfiltered archival CCD images taken with a 0.60-m
reflector on Mar. 19.751 (red mag 18.5) and 21.678 (at red mag
18.3), and measured the following position end figures from the
latter image:  45s.80, 14".7.  Nothing was detected on an image
taken by Itagaki on Mar. 9.612 to red mag 18.5.

                      (C) Copyright 2005 CBAT
2005 March 22                  (8497)            Daniel W. E. Green

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