Central Bureau for Astronomical Telegrams

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IAUC 7453: N LMC 2000; 2000cu; C/2000 M6, 2000 M7, 2000 M8

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                                                  Circular No. 7453
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)


NOVA IN THE LARGE MAGELLANIC CLOUD 2000
     W. Liller, Vina del Mar, Chile, reports his discovery of an apparent
nova in the Large Magellanic Cloud on two unfiltered Kodakk Technical Pan
films obtained using a 0.2-m Schmidt camera on July 12.4 UT.  The object
was not present on a film he had taken of the region on 1999 Mar. 8.  On
July 13.0, using a CCD at the Schmidt's Newtonian focus, he measured
the object's position as R.A. = 5h25m01s.60, Decl. = -70o14'17".3
(equinox 2000.0).  On July 13.4, a low-dispersion objective-prism CCD
spectrogram, also using the Schmidt, showed the object to have intense
H-alpha emission, with a strength more than 100 times that of the
surrounding continuum.  H-beta emission was also clearly present.
Observed magnitudes: July 12.4098 UT, 11.2 (Liller); 12.4129, 11.2 (Liller);
12.98, V = 11.45 (Liller, comparison GSC 9166.0178); 13.469, mv = 11.8 (R.
Stubbings, Drouin, Vic., Australia, comparison GSC 9166.0673; VY Hyi sequence
suggests mv = 12.2).


SUPERNOVA 2000cu IN ESO 525-G004
     M. Papenkova 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 of
an apparent supernova on unfiltered images taken on July 12.3 (mag
about 16.2) and 13.3 UT (mag about 16.1).  The object is located at
R.A. = 19h24m20s.95, Decl. = -25o59'04".1 (equinox 2000.0), which is
12".1 east and 1".5 north of the nucleus of ESO 525-G004.  An unfiltered
image of the field taken on July 5.3 showed nothing at the position of
the object (limiting mag about 19.0).


COMETS C/2000 M6, 2000 M7, 2000 M8
     D. A. Biesecker, Emergent Information Technologies, Inc., and Goddard
Space Flight Center, reports observations of three more Kreutz sungrazing
comets detected with the SOHO/LASCO coronagraphs (C2 alone for the first,
both C3 and C2 for the others).  Detections were by M. Meyer, by H. Luethen
and Meyer and by Biesecker, respectively.  Discovery positions follow.
Complete measurements (by D. Hammer, reduction by B. G. Marsden) and
orbital elements are given on MPEC 2000-N31.

     2000 UT           R.A. (2000) Decl.       Comet
     June 25.479       6 12.9      +21 46      C/2000 M6
          26.471       6 14.9      +20 26      C/2000 M7
          27.779       6 20.8      +21 18      C/2000 M8

                      (C) Copyright 2000 CBAT
2000 July 13                   (7453)              Brian G. Marsden

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