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IAUC 7415: Var STAR IN FIELD OF NGC 3432; 2000cb; C/1999 J2; V463 Sct = N Sct 2000

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                                                  Circular No. 7415
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)


VARIABLE STAR IN FIELD OF NGC 3432
     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 (KAIT) of a variable star (thought not
to be a supernova) in the field of NGC 3432.  The new object was
discovered and confirmed on unfiltered images taken on May 3.2 (mag
about 17.4) and 4.2 UT (mag about 18.2), respectively.  The new
object is located at R.A. = 10h52m41s.40, Decl. = +36o40'08".5
(equinox 2000.0), which is about 123" east and 180" north of the
diffuse nucleus of NGC 3432 and superimposed on an H II region (or
spiral arm) of the galaxy.  An unfiltered image of the field on
Apr. 29.2 (limiting mag about 19.0) showed nothing at the position
of the new object.


SUPERNOVA 2000cb IN IC 1158
     J. Y. Wei, Y. L. Qiu, J. S. Deng, and J. Y. Hu, Beijing
Astronomical Observatory (BAO), on behalf of the BAO supernova
survey, report their detection with the 0.6-m reflector of SN
2000cb (cf. IAUC 7410) on unfiltered images taken on Apr. 29.8,
30.8, and May 3.7 UT, all of which showed the supernova at mag
about 16.3.  Nothing was visible at the position of SN 2000cb on a
similar image obtained on Apr. 7.8.


COMET C/1999 J2 (SKIFF)
     T. Fukushima, T. Nakajima, and J. Watanabe, National
Astronomical Observatory of Japan (NAOJ), report that I-band CCD
images of comet C/1999 J2 taken with the NAOJ 0.50-m telescope show
a dust antitail at the large heliocentric distance of 7 AU (the
comet having passed perihelion on Apr. 5):  Apr. 26.687 UT, 2'.60
in p.a. 12 deg; May 2.576, 3'.31 in p.a. 18 deg.  Coma diameters
were about 0'.4 on both dates, and m_1 = 15.6 in V and 14.9 in I on
Apr. 29.  The earth will cross the comet's orbital plane on May
10.4.


V463 SCUTI = NOVA SCUTI 2000
     Visual magnitude estimates of this nova (cf. IAUC 7382) by A.
Pearce, Nedlands, W. Australia: Mar. 17.883 UT, 11.5; 23.849, 13.0;
25.810, 12.9; 26.858, 13.3; 27.846, 13.6; 28.837, 13.9; 29.835,
13.9; 30.783, 14.0; Apr. 1.851, 14.2; 2.849, 14.2; 5.840, 14.2;
7.840, 14.3; 8.788, 14.5; 9.843, 14.5.

                      (C) Copyright 2000 CBAT
2000 May 5                     (7415)            Daniel W. E. Green

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