THE ASTRONOMER Electronic Circular No 748       1993 Jun 14 19.59UT
Ed:Guy M Hurst, 16,Westminster Close, Kempshott Rise,  Basingstoke,
Hants, RG22 4PP,England. Telephone/FAX(0256)471074 Int:+44256471074
TELEX: 9312111261 Answerback: TA G      TELECOM GOLD: 10074:MIK2885
GMH at UK.AC.RUTHERFORD.STARLINK.ASTROPHYSICS  STARLINK: RLSAC::GMH
GMH at UK.AC.CAM.ASTRONOMY.STARLINK            STARLINK: CAVAD::GMH
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SUPERNOVA 1993R IN NGC 7742
R. R. Treffers, B. Leibundgut, and A. V. Filippenko, University of
California at Berkeley; and M. W. Richmond, Princeton University,
report the discovery of a probable supernova in NGC 7742 (R.A. =
23h41m43s, Decl. = +10 29'.3, equinox 1950.0). The object was found
during the Leuschner Observatory Supernova Search (LOSS), which
uses an automated 0.76-m telescope equipped with the Lawrence
Berkeley Laboratory CCD camera.  SN 1993R was detected in an image
obtained on June 2 UT and confirmed on June 3. Inspection of
earlier LOSS observations of NGC 7742 reveals the presence of this
object since Feb. 15, before it disappeared behind the sun.  It was
not present in an image obtained on Feb. 2.  The supernova is
located about 8" east and 5" north of the galaxy nucleus and is
estimated to be of magnitude R about 17.
IAUC 5812

SUPERNOVAE 1993S AND 1993T IN ANONYMOUS GALAXIES
J. Maza, University of Chile; and M. Hamuy, Cerro Tololo
Interamerican Observatory, report the discovery of two apparent
supernovae by R. Antezana (University of Chile) on 20-min
unfiltered IIa-O plates taken by G. Valladares with the CTIO Curtis
Schmidt telescope.
SN 1993S (mpg about 17.5 on May 26.36 UT) is located 7".5 west and
6".5 north of the nucleus of a spiral galaxy at R.A.= 22h49m33s.4,
Decl. = -40 34'40" (equinox 1950.0).  Confirmation of SN 1993S was
made by R. Aviles on CCD B, V, and I images obtained on June 5.36
with the CTIO 0.9-m telescope.
SN 1993T (mpg about 18 on May 26.38 UT) is located about 18".5 west
and 13".5 north of the nucleus of a galaxy at R.A. = 23h08m07s.7,
Decl. = -45 15'21" (equinox 1950.0). Confirmation of SN 1993T was
also made by Aviles from a CCD V image obtained on June 5.38.
IAUC 5812

SUPERNOVA 1993J IN NGC 3031
Recently the supernova has been in a plateau phase and there is a
possibility that when this ends the decline may be very sharp
although given the unique nature of the light curve to date it
is by no means certain what will happen next.
To date over 700 visual observation have been accepted into the
database and we are currently reviewing a further 200 estimates
secured from either CCD or conventional photography. Additionally
not a single night has been missed since the supernova's discovery.
However the present flow of observations has now dropped
appreciably just at a time when it is vital intensive coverage is
maintained and we are alerted at the earliest possible moment to
any change in activity. Please make every effort to observe the
supernova on every clear night and send in results frequently.