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IAUC 5186: 1991 CQ; 1991E

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IAUC number 

                                                  Circular No. 5186
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


1991 CQ
     R. H. McNaught, University of Adelaide, reports his discovery
of a fast-moving asteroidal object on films taken with the Uppsala
Southern Schmidt telescope:

     1991 UT             R.A. (1950) Decl.        V
     Feb. 10.48924    6 52 55.90   -31 53 35.8   17.5
          10.52743    6 52 58.88   -31 51 49.2
          11.45700    6 54 24.92   -31 07 48.6
          12.53227    6 56 05.55   -30 15 54.2
          12.54616    6 56 06.66   -30 15 14.2

     Very preliminary orbital elements from the above observations:

     T = 1991 Jan.  1.631 ET          Peri. = 277.062
     e = 0.22112                      Node  = 182.943   1950.0
     q = 1.15679 AU                   Incl. =  18.016
       a =  1.48519 AU     n = 0.544541     P =   1.81 years

     1991 ET      R.A. (1950) Decl.     Delta      r       V
     Feb. 13     6 56.85    -29 53.1    0.341    1.199    17.3
          18     7 05.42    -25 37.4
          23     7 14.95    -21 06.4    0.346    1.219    17.3
          28     7 25.35    -16 27.9
     Mar.  5     7 36.47    -11 50.3    0.364    1.243    17.4


SUPERNOVA 1991E IN ANONYMOUS GALAXY
     M. Della Valle, European Southern Observatory; and M. Turatto,
Osservatorio Astronomico di Padova, communicate:  "A low-resolution
spectrogram (range 400-800 nm) was obtained on Feb. 12.04 UT with
the New Technology Telescope (+ EMMI) at La Silla.  The spectrum
exhibits strong H-alpha emission with a P-Cyg profile, characteristic
of type-II SNe.  The redshift of the host galaxy, determined from
the H-alpha + N II emissions, is z = 0.024.  The expansion velocity
derived from the difference between the rest wavelength in the
galaxy's frame and the minimum of the absorptions is about 7000 km/s.
Other features are observed in absorption at 523.0, 507.0, 486.7,
459.7, and 437.2 nm.  The spectrum resembles that of SN 1987A about
10 days past maximum."


1991 February 13               (5186)             Daniel W. E. Green

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