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IAUC 5712: 1993C, 1993E; 1980 AA; Corrs

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                                                  Circular No. 5712
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)


SUPERNOVAE 1993C AND 1993E
     R. Kirshner and M. Kirshner, Center for Astrophysics, report
that spectrograms (range 400-800 nm) obtained on Feb. 18 at the
Multiple Mirror Telescope confirm that SN 1993C is of type Ia, as
reported on IAUC 5701.  Also, SN 1993E shows the distinctive H-
alpha emission of type-II supernovae; the FWZI for the H-alpha line
is about 11 000 km/s, and the peak wavelength is shifted to about
671 nm.  Further spectra and photometry may be valuable for
determining a distance to this supernova by the 'expanding photosphere
method'.


1980 AA
     Orbital elements by G. V. Williams from MPC 21783:

                    Epoch = 1993 Jan. 13.0 TT
     T = 1993 Jan. 10.3273 TT         Peri. = 168.0395
     e = 0.443895                     Node  = 299.2262  2000.0
     q = 1.052284 AU                  Incl. =   4.1891
       a =  1.892240 AU    n = 0.3786517    P =   2.603 years

1993 TT     R. A. (2000) Decl.   Delta     r    Elong. Phase    V
Feb. 22     9 02.38   + 1 14.7   0.173   1.152  158.4   18.5   15.9
     27     9 14.24   + 0 13.9   0.197   1.174  157.0   19.2   16.3
Mar.  4     9 24.59   - 0 26.7   0.223   1.198  155.4   20.2   16.6
      9     9 33.88   - 0 53.4   0.252   1.223  153.5   21.2   17.0
     14     9 42.43   - 1 10.4   0.283   1.250  151.3   22.4   17.3
     19     9 50.48   - 1 21.1   0.317   1.277  148.9   23.7   17.7
     24     9 58.24   - 1 28.4   0.353   1.306  146.4   25.0   18.0
     29    10 05.85   - 1 34.3   0.392   1.335  143.7   26.3   18.3
Apr.  3    10 13.41   - 1 40.4   0.434   1.365  141.0   27.5   18.6
      8    10 20.96   - 1 47.5   0.478   1.395  138.2   28.6   18.9
     13    10 28.52   - 1 56.4   0.526   1.425  135.4   29.6   19.2
     18    10 36.12   - 2 07.3   0.575   1.456  132.5   30.5   19.4
     23    10 43.77   - 2 20.7   0.628   1.487  129.7   31.4   19.7
     28    10 51.50   - 2 36.8   0.683   1.518  126.9   32.1   19.9
May   3    10 59.31   - 2 55.5   0.740   1.549  124.0   32.6   20.2
      8    11 07.17   - 3 16.8   0.800   1.580  121.3   33.1   20.4
     13    11 15.08   - 3 40.4   0.862   1.611  118.5   33.5   20.6


CORRIGENDA
     The Feb. 2 observations of 1993 BW3 on IAUC 5705 and of 1993
BX3 on IAUC 5706 were all from plates taken by M. J. Drinkwater
with the U.K. Schmidt Telescope.


1993 February 22               (5712)            Daniel W. E. Green

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