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IAUC 6498: 1996bp; 1996bo; C/1996 N1

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                                                  Circular No. 6498
Central Bureau for Astronomical Telegrams
INTERNATIONAL ASTRONOMICAL UNION
Postal Address: Central Bureau for Astronomical Telegrams
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)
Phone 617-495-7244/7440/7444 (for emergency use only)


SUPERNOVA 1996bp IN MCG -06-04-053
     R. H. McNaught, Anglo-Australian Observatory, reports his
discovery, on an R plate exposed by F. G. Watson with the U.K.
Schmidt on Aug. 11.8 UT, of an apparent supernova (mag about 18)
located at R.A. = 1h35m20s.80, Decl. = -32 46'51".0 (equinox
2000.0; poorly placed near the edge of the plate, uncertainty 0".6
in each coordinate), which is 8".5 west and 15".4 south of the
elliptical galaxy's center.  SN 1996bp is also present on a weak U
film taken one day earlier (Aug. 10.8), with the supernova being
much more prominent in relation to nearby stars.  A nearby star (R
about 17, but fainter than SN 1996bp in U) has position end figures
22s.51, 47'28".6.  The supernova is not present on the ESO R or B
surveys or on several U.K. Schmidt exposures, the latest being an R
survey plate taken on 1991 Nov. 27.


SUPERNOVA 1996bo IN NGC 673
     T. Hirayama, National Astronomical Observatory, Tokyo, reports
that K. Okazaki, Kahoku-machi, Yamagata-ken, independently
discovered this object (cf. IAUC 6497) at mag about 15 on an
unfiltered CCD image taken with a 0.28-m reflector on Oct. 24.65 UT.


COMET C/1996 N1 (BREWINGTON)
     Ephemeris extension to IAUC 6466 (elements MPC 27882):

1996 TT     R. A. (2000) Decl.   Delta     r    Elong. Phase    m1
Nov.  3    21 06.50   +47 47.9   1.216   1.775  106.6   32.4   13.2
      8    21 28.18   +45 18.5   1.277   1.838  107.7   30.9   13.5
     13    21 47.57   +42 51.9   1.344   1.902  108.2   29.6   13.8
     18    22 05.00   +40 31.8   1.420   1.965  108.0   28.6   14.2
     23    22 20.77   +38 20.7   1.502   2.028  107.3   27.7   14.5
     28    22 35.16   +36 19.9   1.592   2.091  106.0   27.0   14.8
Dec.  3    22 48.39   +34 30.2   1.687   2.153  104.3   26.3   15.1
      8    23 00.66   +32 51.6   1.788   2.216  102.2   25.8   15.4
     13    23 12.12   +31 23.9   1.894   2.278   99.8   25.2   15.8
     18    23 22.91   +30 06.6   2.004   2.340   97.2   24.7   16.0
     23    23 33.12   +28 58.9   2.118   2.402   94.4   24.1   16.3

     Visual m1 estimates:  Oct. 9.14 UT, 12.2 (R. Keen, Mt.
Thorodin, CO, 0.32-m reflector); 13.79, 11.9 (K. Hornoch,
Lelekovice, Czech Republic, 0.35-m reflector); 20.04, 13.8: (J.
Carvajal, Teruel, Spain, 0.44-m reflector).

                      (C) Copyright 1996 CBAT
1996 October 28                (6498)            Daniel W. E. Green

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