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IAUC 5827: 1993n; 1993T; N IN M31; RY Sgr

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                                                  Circular No. 5827
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)


PERIODIC COMET WHIPPLE (1993n)
     J. V. Scotti, University of Arizona, reports his recovery of
this comet with the Spacewatch telescope at Kitt Peak.  The comet
appears essentially stellar, and the following positions are very
close to the prediction on MPC 18259 (ephemeris on MPC 21961):

     1993 UT             R.A. (2000) Decl.        m1
     June 25.38638   19 51 43.55   - 8 25 59.9
          25.39787   19 51 43.11   - 8 26 00.3   21.5
          25.41126   19 51 42.63   - 8 25 59.9   21.0
          26.34800   19 51 13.58   - 8 26 25.8   21.2
          26.35657   19 51 13.28   - 8 26 25.9   20.7
          26.36824   19 51 12.87   - 8 26 26.9


SUPERNOVA 1993T IN ANONYMOUS GALAXY
     E. Cappellaro and M. Della Valle, European Southern Observatory,
La Silla, report:  "On June 28.4 UT we obtained a low-resolution
spectrogram (range 400-900 nm, resolution 2 nm) of SN 1993T
(cf. IAUC 5812) using the New Technology Telescope (+ EMMI).  The
spectrum shows several broad emission lines at 500, 535, 605, 630,
and 710 nm, indicating a type-Ia supernova about 40 days after
maximum. The redshift of the parent galaxy, as measured from several
absorption features, is z = 0.088."


NOVA IN M31
     A. V. Filippenko and T. Matheson, University of California at
Berkeley, report that a CCD spectrum (range 420-710 nm) obtained on
June 28 UT with the Shane 3-m reflector at Lick Observatory confirms
that the object discovered by Treffers et al. (IAUC 5814) is indeed
a nova.  Relatively broad, double-peaked H-alpha emission is detected.
The nova is now much fainter than at the time of discovery.


RY SAGITTARII
     This R CrB-type variable (cf. IAUC 5084) has started to fade
slowly for the first time since 1990, as indicated by the following
visual observations:  June 1.8 UT, 5.9 (A. Jones, Nelson, New
Zealand); 15.0, 6.5 (D. Overbeek, Edenvale, South Africa); 15.4, 6.9
(Jones); 17.42, 7.2 (C. Henshaw, Maunatlala, Botswana); 26.8, 7.4
(Jones); 29.1, 7.6 (Overbeek).


1993 June 30                   (5827)            Daniel W. E. Green

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