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IAUC 5699: 1993C; 1993A and 1993B; 1993a; 1992u

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                                                  Circular No. 5699
Central Bureau for Astronomical Telegrams
INTERNATIONAL ASTRONOMICAL UNION
Postal Address: Central Bureau for Astronomical Telegrams
Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
Telephone 617-495-7244/7440/7444 (for emergency use only)
TWX 710-320-6842 ASTROGRAM CAM     EASYLINK 62794505
MARSDEN@CFA or GREEN@CFA (.SPAN, .BITNET or .HARVARD.EDU)


SUPERNOVA 1993C IN NGC 2954
     C. Pollas, Observatoire de la Cote d'Azur, reports his discovery
of an apparent supernova of mag about 18 in the elliptical galaxy
NGC 2954, found on a Kodak Technical Pan film taken Jan. 27.04
UT and confirmed on a similar film taken Jan. 28.03 by D. Albanese.
SN 1993C is located at R.A. = 9h37m39s.70, Decl. = +15 09'49".8
(equinox 1950.0), which is 4".8 west and 49".7 north of the galaxy's
center.  Nearby stars have the following positional end figures:
40s.83, 48".6 (V = 17.6); 38s.71, 10'30".0 (V about 14).
      S. Benetti and E. Cappellaro, Asiago Astrophysical Observatory,
confirm the presence of the new object, citing the offsets as
3" west, 50" north; with the 1.82-m telescope (+ CCD camera) at
Cima Ekar, they obtained the following magnitudes, which they note
are consistent with a type-Ia supernova about 1 month after maximum
light:  Jan. 27.92 UT, B = 18.7, V = 17.7, R = 17.4.


SUPERNOVAE 1993A and 1993B IN ANONYMOUS GALAXIES
     M. M. Phillips, Cerro Tololo Interamerican Observatory, reports
that a spectrogram of SN 1993A (cf. IAUC 5693) obtained with
the CTIO 4.0-m telescope on Jan. 28.22 UT reveals strong, broad H-
alpha emission with the characteristic P-Cyg profile of a type-II
plateau event.  Weaker, broad absorption features due to H-beta and
Fe II are also clearly visible.  A spectrum obtained of the host
galaxy yields a redshift of 0.028.
     A spectrogram of SN 1993B obtained by Phillips on Jan. 28.28
UT shows that this object is a type-Ia supernova about 10 days past
maximum.  The host galaxy redshift was measured to be 0.069.


COMET MUELLER (1993a)
     Total visual magnitude estimates:  Jan. 16.31 UT, 13.4 (A.
Hale, Las Cruces, NM, 0.41-m reflector); 19.01, 13.6 (H. Mikuz,
Ljubljana, Slovenia, 0.20-m Baker-Schmidt camera +  CCD + V filter;
5' fan-shaped tail in p.a. 160 deg); 21.60, 13.3 (A. Nakamura, Kuma,
Japan, 0.60-m reflector); 25.91, 14.0 (Mikuz, 0.19-m f/4 flat field
camera + CCD + V filter).


PERIODIC COMET VAISALA 1 (1992u)
     Total visual magnitude estimate by Nakamura:  Jan. 21.65 UT,
15.0.


1993 January 28                (5699)            Daniel W. E. Green

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