Central Bureau for Astronomical Telegrams

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IAUC 7458: 2000cx; N IN NGC 185; C/1999 G3, C/1999 G4, C/1999 H6; N LMC 2000

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                                                  Circular No. 7458
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)
BMARSDEN@CFA.HARVARD.EDU or DGREEN@CFA.HARVARD.EDU (science)
URL http://cfa-www.harvard.edu/iau/cbat.html  ISSN 0081-0304
Phone 617-495-7244/7440/7444 (for emergency use only)


SUPERNOVA 2000cx IN NGC 524
     C. Yu, M. Modjaz, and W. D. Li, University of California at
Berkeley, on behalf of the Lick Observatory Supernova Search (cf.
IAUC 6627, 7126), report the discovery with the 0.8-m Katzman
Automatic Imaging Telescope (KAIT) of an apparent supernova on
unfiltered images taken on July 17.5 (mag about 14.5) and 18.4 UT
(mag about 14.3).  The new object is located at R.A. = 1h24m46s.15,
Decl. = +9 30'30".9 (equinox 2000.0), which is 23".0 west and
109".3 south of the nucleus of NGC 524.  A KAIT image of the same
field taken on 1998 Aug. 31.4 showed nothing at the position of SN
2000cx (limiting mag about 19.5).


NOVA IN NGC 185
     Modjaz and Li also report the discovery with KAIT of an
apparent nova on unfiltered images taken on July 13.5 (mag about
18.7) and 14.5 UT (mag about 18.2).  The new object is located at
R.A. = 0h39m07s.02, Decl. = +48o20'34".4 (equinox 2000.0), which is
about 93" east and 20" north of the diffuse nucleus of NGC 185.  A
KAIT image of the same field on July 11.5 (limiting mag about 19.0)
showed nothing at the position of the nova.


COMETS C/1999 G3, C/1999 G4, C/1999 H6 (SOHO)
     D. Hammer reports measurements of three more Kreutz sungrazing
comets from SOHO LASCO C2 data (cf., e.g., IAUC 7452, 7454), all
found by M. Oates from archival data on the SOHO website.  The
discovery observations are given below, while MPEC 2000-O06
contains the fully reduced observations and orbital elements (by
B. G. Marsden).

   1999 UT         R.A. (2000) Decl.    Comet
   Apr. 2.021     0 50.9    + 3 58    C/1999 G3
        3.496     0 56.3    + 4 31    C/1999 G4
       28.729     2 27.6    +12 59    C/1999 H6


NOVA IN THE LARGE MAGELLANIC CLOUD 2000
     A. Gilmore reports the following photometry obtained by P. M.
Kilmartin with the 0.6-m f/16 reflector at Mount John Observatory
at Lake Tekapo (reference star CPD -70o399, calibrated by Cousins):
July 16.29 UT, V = 12.83 +/- 0.02, U-B = -0.91 +/- 0.08, B-V =
-0.12 +/- 0.00, V-R = +1.15 +/- 0.05, V-I = +0.77 +/- 0.03, airmass
1.97.

                      (C) Copyright 2000 CBAT
2000 July 18                   (7458)            Daniel W. E. Green

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