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IAUC 8115: C/2003 G1; 2003dj, 2003dk,, 2003dl; V4006 Sgr (NO NEW N IN SAGITTARIUS)

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                                                  Circular No. 8115
Central Bureau for Astronomical Telegrams
INTERNATIONAL ASTRONOMICAL UNION
Mailstop 18, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
IAUSUBS@CFA.HARVARD.EDU or FAX 617-495-7231 (subscriptions)
CBAT@CFA.HARVARD.EDU (science)
URL http://cfa-www.harvard.edu/iau/cbat.html  ISSN 0081-0304
Phone 617-495-7440/7244/7444 (for emergency use only)


COMET C/2003 G1 (LINEAR)
     An apparently asteroidal object reported by LINEAR (discovery
observation below), and posted on the NEO Confirmation Page, has
been found to be cometary by several CCD observers, including L.
Sarounova and P. Kusnirak (Ondrejov), A. Galad (Modra), P.
Birtwhistle (Great Shefford, U.K.), G. Hug (Eskridge, KS), P. R.
Holvorcem (0.81-m Tenagra II telescope; m_1 = 15.4 on Apr. 9.46
UT), and M. Tichy (Klet).  The general description of the comet
gives a coma of diameter 8"-15" and a straight tail about 40"-90"
long in p.a. 210-225 deg during Apr. 9.1-10.0.  The available
astrometry, preliminary parabolic orbital elements (T = 2003 Feb.
7, q = 4.9 AU, i = 67 deg), and ephemeris appear on MPEC 2003-G56.

     2003 UT             R.A. (2000) Decl.        m2
     Apr.  8.45282   17 42 30.50   - 3 33 48.3   17.0


SUPERNOVAE 2003dj, 2003dk, AND 2003dl
     Three additional apparent supernovae have been reported from
unfiltered CCD survey images -- SNe 2003dj and 2003dk by W. M.
Wood-Vasey et al. (NEAT; cf. IAUC 8114), and SN 2003dl in NGC 5789
by J. Graham and W. Li (LOTOSS/KAIT; cf. IAUC 8113).

SN      2003 UT      R.A.  (2000.0)  Decl.    Mag.      Offset
2003dj  Mar. 24.46  13 16 22.04  +19 25 53.4  20.0   3".4 E, 2".1 N
2003dk  Mar. 27.34  13 15 31.65  - 7 20 55.8  19.2   2".3 W, 3".1 S
2003dl  Mar. 31.5   14 56 36.25  +30 14 21.5  19.2   7".8 E, 21".0 N

Additional approximate magnitudes from the respective observers:
SN 2003dj, 2002 Apr. 10.27 UT, [21.7; 2003 Feb. 3.62, [20.8; Mar.
26.46, 20.2; Apr. 9.31, 19.9.  SN 2003dk, 2002 May 9.16, [21.1;
2003 Feb. 8.56, [20.9; 18.61, [20.0; Apr. 9.31, 19.7.  SN 2003dl,
Feb. 8.5, [20.0; Mar. 16.5, [19.5; Apr. 4.4, 19.2 (M. Schwartz,
Tenagra II telescope); 8.5, 19.2; 9.5, 19.2.


V4006 SAGITTARII (NO NEW NOVA IN SAGITTARIUS)
     The 'probable nova' reported on IAUC 8113 appears to be the
Mira-type variable V4006 Sgr, now near its peak brightness (period
about 281 days).  The rough discovery position given by Lukas
(1976, JAAVSO 4, 64), is about 1' southwest of the precise position
given on IAUC 8113.

                      (C) Copyright 2003 CBAT
2003 April 10                  (8115)            Daniel W. E. Green

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