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IAUC 3282: 1978l; SN IN Anon GALAXY

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IAUC number 

                                                  Circular No. 3282
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 617-864-5758


COMET MACHHOLZ (1978l)
     The following precise positions have been reported:

     1978 UT             R. A. (1950) Decl.        Observer
     Sept.23.76972     6 28 50.58   -28 14 15.5    Herald
          30.76944     6 17 25.25   -35 18 01.4      "
     Oct.  3.50694     6 11 26.86   -38 13 05.8    Giclas

D. Herald (Kambah, near Canberra).  31-cm reflector.
H. L. Giclas (Lowell Observatory).  Measurer: M. L. Kantz.

     The following parabolic orbital elements, by the undersigned,
satisfy the above observations and those on IAUC 3275 within 3".
A general solution yields the formal result e = 0.96 +/- 0.02.

       T = 1978 Aug. 13.676 ET   Peri. = 224.768
                                 Node  = 289.988   1950.0
       q = 1.77152 AU            Incl. = 130.636

     1978 ET     R. A. (1950) Decl.     Delta     r      m1
     Oct.  9     5 56.05    -44 12.5    1.526   1.913   10.7
          14     5 36.98    -49 37.3
          19     5 11.59    -54 43.0    1.514   1.965   10.8
          24     4 38.45    -59 09.7
          29     3 57.02    -62 36.2    1.575   2.022   11.0
     Nov.  3     3 09.07    -64 46.0
           8     2 19.36    -65 33.8    1.702   2.085   11.3
          13     1 33.59    -65 10.1
          18     0 55.42    -63 55.1    1.880   2.152   11.7
          23     0 25.54    -62 09.7
          28     0 02.94    -60 09.5    2.091   2.224   12.1

     Further total visual magnitude estimates by D. Machholz, Los
Gatos, CA (25-cm reflector): Oct. 3.53 UT, 10.7; 5.53, 10.6.


SUPERNOVA IN ANONYMOUS GALAXY
     W. Zealey, U.K. Schmidt Telescope Unit, reports the discovery
by S. Lee and himself on Sept. 23 of an mpv = 20.0 supernova at R.A. =
23h03m47s, Decl. = -44o43'.4 (equinox 1950.0), 11" east and 6" south of
the nucleus of a galaxy that, according to H.-E. Schuster, European
Southern Observatory, is part of an interacting system.


1978 October 6                 (3282)              Brian G. Marsden

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