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IAUC 8092: P/2003 CP_7; C/2003 E1; 2003bu

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IAUC number 

                                                  Circular No. 8092
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 P/2003 CP_7 (LINEAR-NEAT)
     A comet discovered on NEAT Palomar images obtained on Mar. 10,
and posted on the NEO Confirmation Page, was reported by K.
Lawrence as showing a nuclear condensation of diameter about 7" and
a tail about 8" long toward the west.  The cometary nature was
confirmed by J. Young at Table Mountain on Mar. 12.4 UT.  The Minor
Planet Center has linked this object to an apparently asteroidal
LINEAR object of mag 19.0 on Feb. 1 and 4 that was designated 2003
CP_7 (MPS 73383-73384, Feb. 16).

     2003 UT             R.A. (2000) Decl.        m1    Observer
     Feb.  1.39231   11 27 24.65   +11 10 53.4          LINEAR
     Mar. 10.35520   11 10 16.06   +15 50 08.0   17.7   NEAT

The available astrometry, the following elliptical orbital elements,
and an ephemeris appear on MPEC 2003-E47.

     T = 2003 Apr. 29.0579 TT         Peri. =  42.5367
     e = 0.248745                     Node  = 133.1425  2000.0
     q = 3.018060 AU                  Incl. =  12.3472
       a =  4.017357 AU    n = 0.1224034    P =   8.052 years


COMET C/2003 E1 (NEAT)
     S. Pravdo reports another NEAT comet discovery, the object
having a tail extending about 8" in p.a. 215 deg on Mar. 11.  Young
also found it cometary on Mar. 12.  The available astrometry, very
uncertain parabolic orbital elements [T = 2004 Mar. 13.3 TT, Peri.
= 110.8 deg, Node = 141.9 deg, i = 37.6 deg (equinox 2000.0),  q =
2.950 AU], and an ephemeris appear on MPEC 2003-E48.

     2003 UT             R.A. (2000) Decl.        m1
     Mar.  9.50577   12 25 51.32   +27 07 41.1   19.7


SUPERNOVA 2003bu IN NGC 5393
     Further to IAUC 8091, H. Pugh and W. Li report the LOTOSS
discovery of an apparent supernova on unfiltered KAIT images taken
on Mar. 11.5 (mag about 17.5) and 12.5 UT (mag about 17.2).  SN
2003bu is located at R.A. = 14h00m31s.45, Decl. = -28o52'32".7
(equinox 2000.0), which is 7".3 west and 3".7 south of the nucleus
of NGC 5393.  A KAIT image taken on Feb. 10.5 showed nothing at
this position (limiting mag about 18.0).

                      (C) Copyright 2003 CBAT
2003 March 12                  (8092)            Daniel W. E. Green

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