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IAUC 8135: C/2003 K1; P/2003 H4; 2003el

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IAUC number 

                                                  Circular No. 8135
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 K1 (SPACEWATCH)
     An object initially reported as asteroidal by J. A. Larsen on
CCD images obtained with the 0.9-m Spacewatch reflector (discovery
observation below) was posted on the NEO Confirmation Page.  CCD
images taken by A. Lopez and R. Pacheco (Mallorca, 0.41-m
reflector) on May 23.9 UT showed cometary appearance (and m_1 =
18.2-18.6).  A. E. Gleason found the coma to be quite obvious on
May 24.3 images taken with the 1.8-m Spacewatch II reflector at
Kitt Peak, and Larsen found a 10" coma on Spacewatch I images taken
on May 24.4.

     2003 UT             R.A. (2000) Decl.        m2
     May  23.37801   16 11 27.91   - 5 28 12.7   20.2

The available astrometry, the following preliminary parabolic
orbital elements, and an ephemeris appear on MPEC 2003-K37.

     T = 2003 Jan. 10.761 TT          Peri. = 327.390
                                      Node  = 250.809   2000.0
     q = 2.34873 AU                   Incl. = 131.957


COMET P/2003 H4 (LINEAR)
     The following orbital elements, from MPEC 2003-K34, indicate
that this comet passed 0.07 AU from Jupiter in June 1929, before
which q and P were larger.

     T = 2003 May  14.3119 TT         Peri. =  10.4498
     e = 0.490221                     Node  = 226.7962  2000.0
     q = 1.703366 AU                  Incl. =  18.1550
       a =  3.341379 AU    n = 0.1613673    P =   6.11 years


SUPERNOVA 2003el IN NGC 5000
     Further to IAUC 8134, M. Papenkova and W. Li report the LOTOSS
discovery of an apparent supernova on unfiltered KAIT images taken
on May 22.3 (mag about 18.8) and 23.3 UT (mag about 18.9).  SN
2003el is located at R.A. = 13h09m46s.20, Decl. = +28o54'21".6
(equinox 2000.0), which is 16".7 west and 2".7 south of the nucleus
of NGC 5000.  KAIT images taken on Apr. 19.3 (limiting mag about
19.0), and Mar. 7.3 (limiting mag about 19.6) showed nothing at
this position.

                      (C) Copyright 2003 CBAT
2003 May 24                    (8135)            Daniel W. E. Green

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