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IAUC 7229: 1999dg; 1999dh; C/1999 N2; C/1999 J3

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                                                  Circular No. 7229
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 1999dg IN UGC 9758
     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 in UGC 9758 (=
MCG +02-39-007).  SN 1999dg was discovered on unfiltered images
taken on July 23.2 UT (mag about 16.7) and confirmed on images
taken on July 24.2 (mag about 16.5).  The new object is located at
R.A. = 15h11m28s.41, Decl. = +13o29'05".7 (equinox 2000.0), which
is 4".8 east and 5".2 north of the nucleus of UGC 9758.  A KAIT
image of the same field on July 15.2 (limiting mag about 19.0)
showed nothing at the position of SN 1999df.


SUPERNOVA 1999dh IN IC 211
     Modjaz and Li also report the discovery (as above) of an
apparent supernova in IC 211.  SN 1999dh was discovered on
unfiltered images taken on July 23.5 UT (mag about 15.4) and
confirmed on images taken on July 24.5 (mag about 15.6).  The new
object is located at R.A. = 2h11m06s.07, Decl. = +3 51'06".9
(equinox 2000.0), which is 29".0 west and 1".7 south of the nucleus
of IC 211.  A KAIT image of the same field on Feb. 4.2 (limiting
mag about 19.0) showed nothing at the position of SN 1999dh.


COMET C/1999 N2 (LYNN)
     Total visual magnitude and coma-diameter estimates: July 15.87
UT, 7.7, 6' (J. G. de S. Aguiar, Joaquim Egidio, Brazil, 0.23-m
reflector); 16.39, 7.0, 5' (M. Mattiazzo, Wallaroo, South
Australia, 7x50 binoculars); 17.26, 6.8, 5' (N. Biver, Oahu, HI,
7x50 binoculars); 18.37, 7.1, 7' (C. E. Drescher, Beenleigh, Qld.,
Australia, 20x80 binoculars); 20.34, 7.1, 4' (D. A. J. Seargent,
The Entrance, N.S.W., 10x50 binoculars); 22.46, 7.3, 5'.5 (A.
Pearce, Nedlands, W. Australia, 20x80 binoculars); 23.46, 7.2, 7'
(Pearce).


COMET C/1999 J3 (LINEAR)
     Visual m_1 estimates:  May 15.98 UT, 15.2 (R. J. Bouma,
Lattrop, The Netherlands, 0.40-m reflector); July 10.97, 14.0
(Bouma); 12.17, 12.7 (A. Hale, Cloudcroft, NM, 0.41-m reflector);
16.28, 12.2 (N. Biver, Oahu, HI, 0.26-m reflector); 17.95, 11.4 (M.
Meyer, Frauenstein, Germany, 0.25-m reflector); 21.97, 11.9 (M.
Reszelski, Szamotuly, Poland, 0.25-m reflector).

                      (C) Copyright 1999 CBAT
1999 July 24                   (7229)            Daniel W. E. Green

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