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IAUC 7135: 1999bg; 1999bh; C/1995 O1

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                                                  Circular No. 7135
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 1999bg IN IC 758
     W. Li, University of California at Berkeley, reports the
discovery of an apparent supernova by the Lick Observatory
Supernova Search (LOSS; cf. IAUC 6627, 7126) with the 0.8-m Katzman
Automatic Imaging Telescope (KAIT).  SN 1999bg was found and
confirmed on unfiltered CCD frames taken on Mar. 28.3 and 29.3 UT
(mag about 15.5 on both dates).  The new object is located at R.A.
= 12h04m07s.30, Decl. = +62o30'01".2 (equinox 2000.0), which is
about 33" west and 20" south of the nucleus of IC 758.  A KAIT
image of the same field on Feb. 28.4 (limiting mag about 18.0)
showed nothing at the position of SN 1999bg.


SUPERNOVA 1999bh IN NGC 3435
     Li also reports the discovery by LOSS of another apparent
supernova in an unfiltered image taken on Mar. 29.2 UT (mag about
16.8).  SN 1999bh was confirmed at mag 17.5 on an earlier image
taken on Mar. 24.2 and is located at R.A. = 10h54m46s.97, Decl. =
+61o17'20".0 (equinox 2000.0), which is about 10" west and 3" south
of the nucleus of NGC 3435.  A KAIT image of the same field on Mar.
17.2 (limiting mag about 19.0) already showed a hint of SN 1999bh,
and a KAIT image on Mar. 12.2 (limiting mag about 19.0) showed
nothing at the position of the supernova.


COMET C/1995 O1 (HALE-BOPP)
     Ephemeris extension to IAUC 7083 (elements MPC 32410):

1999 TT     R. A. (2000) Decl.   Delta     r    Elong. Phase    m1
Apr.  2     4 53.44   -65 55.6   8.119   8.067   83.5    7.1   11.6
     12     4 58.99   -65 06.0   8.193   8.147   83.8    7.0   11.7
     22     5 05.65   -64 23.4   8.266   8.226   84.2    7.0   11.7
May   2     5 13.20   -63 48.7   8.338   8.305   84.6    6.9   11.8
     12     5 21.43   -63 22.1   8.409   8.383   85.1    6.9   11.9
     22     5 30.20   -63 04.2   8.481   8.461   85.5    6.8   11.9
June  1     5 39.33   -62 55.2   8.552   8.539   85.9    6.8   12.0
     11     5 48.70   -62 55.0   8.624   8.616   86.2    6.8   12.0
     21     5 58.19   -63 03.7   8.696   8.694   86.5    6.7   12.1
July  1     6 07.67   -63 21.1   8.770   8.770   86.7    6.6   12.1
     11     6 17.03   -63 46.9   8.845   8.847   86.8    6.6   12.2
     21     6 26.13   -64 20.6   8.921   8.923   86.9    6.5   12.3

                      (C) Copyright 1999 CBAT
1999 March 29                  (7135)            Daniel W. E. Green

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