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IAUC 4300: 1987c; 1987 AB; 1986O

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IAUC number 

                                                  Circular No. 4300
Central Bureau for Astronomical Telegrams
INTERNATIONAL ASTRONOMICAL UNION
Postal Address: Central Bureau for Astronomical Telegrams
Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
TWX 710-320-6842 ASTROGRAM CAM    Telephone 617-495-7244/7440/7444


COMET NISHIKAWA-TAKAMIZAWA-TAGO (1987c)
     H. Kosai, Tokyo Astronomical Observatory, telexes the indepenent
discoveries of a new comet by the first four observers listed
below.  The comet is diffuse with strong condensation.

       1987 UT        R.A. (1950) Decl.    m1    Observer
       Jan. 19.483     0 02.0    + 5 00    9     Nishikawa
            20.399     0 03.5    + 6 35    9.5:  Takamizawa
            20.431     0 02.8    + 6 28    9     Tago
            20.434     0 03.0    + 6 28    9     Mitsuma
            20.519     0 02.8    + 6 27    9.2   Kobayashi

Noboru Nishikawa (Minamata, Kumamoto, Japan).  0.15-m refractor.
Kesao Takamizawa (Saku, Nagano, Japan).  Coma diameter 5'.
Akihiko Tago (Tsuyama, Okayama, Japan).
Shigeo Mitsuma (Honjo, Saitama, Japan).
J. Kobayashi (Kumamoto, Japan).  0.31-m refl.; coma diameter 6'.


1987 AB
     R. H. McNaught, Siding Spring Observatory, reports the
discovery by D. Waldron of a fast-moving asteroidal object on a U.K.
Schmidt exposure by M. Hawkins.  The measurements are by McNaught;
note that the direction of motion is uncertain.

       1987 UT              R.A.  (1950)   Decl.     Mag.
       Jan. 10.65641    10 19 30.64    - 1 53 21.6    16
            10.73975    10 19 27.50    - 1 49 36.0


SUPERNOVA 1986O IN NGC 2227
     A. V. Filippenko, University of California at Berkeley; and
W. L. W. Sargent, California Institute of Technology, report that
spectra (range 423-685 nm, resolution 0.2-0.5 nm) obtained on Jan.
21 with the Hale 5-m reflector at Palomar show this to be a type Ia
object.  Preliminary analysis indicates that it is 30 +/- 10 days
past maximum.  Broad maxima were observed in the spectrum at rest
wavelengths of about 461, 493, 529, 541, 587 and 652 nm.


1987 January 21                (4300)            Daniel W. E. Green

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