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IAUC 5446: 1992E; 1992F; P/SCHWASSMANN-WACHMANN 1

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                                                  Circular No. 5446
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 or GREEN@CFA.BITNET    MARSDEN or GREEN@CFAPS2.SPAN


SUPERNOVA 1992E IN ANONYMOUS GALAXY
     R. H. McNaught, Anglo-Australian Observatory, reports his
discovery of an apparent supernova (mag about 20) on a red film taken
Jan. 27.6 UT by M. J. Drinkwater with the U.K. Schmidt Telescope.
The supernova is situated in a spiral arm and offset from the
galaxy's center by 7".7 west and 2".5 south, with coordinates R.A. =
6h34m37s.37, Decl. = -59 53'30".6 (equinox 1950.0, uncertainty 0".4
in R.A., 0".6 in Decl.).  Two field stars lie within the bounds of
the galaxy, having end figures 39s.28, 38".0 (mag about 17.5) and
36s.94, 32".4 (mag about 21), the supernova lying 3".2 east and 1".8
north of the latter star.  No star appears on the ESO R survey.


SUPERNOVA 1992F IN ANONYMOUS GALAXY
     C. Pollas, Observatoire de la Cote d'Azur, reports his discovery,
on Tech Pan films (limiting mag 21.5-22) taken on Feb. 2.1 and
6.2 UT by D. Albanese and himself, of an apparent supernova (mag
about 19) embedded in the northwest part of a galaxy of mag 16.5.
SN 1992F is located at R.A. = 11h22m34s.21, Decl. = +56 52'32".4
(equinox 1950.0), and is offset 2".9 west and 4".1 north from the
galaxy's center.  The supernova seems slightly fainter on the second
date, and it evidently was not visible on films to mag 20-21 taken
on Jan. 14.2 and 15.2.  The POSS prints show no significant stellar
image, with limiting magnitudes 19.5 in red and 20 in blue.  A nearby
star of mag 17.5 is at R.A. = 11h22m33s.65, Decl. = +56 52'27".9.
     S. Benetti and F. Patat, Asiago Observatory, confirm that
Pollas' new object is a supernova; a CCD R frame was obtained on
Feb. 6.93 UT at the Cima Ekar 1.8-m telescope under poor weather
conditions, in which SN 1992F appears 2.3 mag fainter than a nearby
star mentioned above.


PERIODIC COMET SCHWASSMANN-WACHMANN 1
     Total magnitude estimates (cf. IAUC 5404), visual unless
otherwise noted:  1991 Dec. 13.36 UT, 12.9 (A. Hale, Las Cruces, NM,
0.41-m reflector); 16.12, [14.0 (H. Mikuz, Ljubljana, Slovenia,
0.36-m reflector); 1992 Jan. 6.76, [14.5 (Mikuz); Feb. 2.45, 12.5:
(M. Tsumura, Oishi Station, Japan, 0.31-m reflector, Tech Pan 2415
film; comet diffuse with strong central condensation).


1992 February 7                (5446)             Daniel W. E. Green

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