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IAUC 3277: 1978m; 1978l; P/SCHWASSMANN-WACHMANN 1

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IAUC number 

                                                  Circular No. 3277
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 SEARGENT (1978m)
     David A. J. Seargent, The Entrance, New South Wales, reports
the discovery of a comet as follows.  Available positions are:

     1978 UT             R. A. (1950) Decl.        m1    Observer
     Oct.  1.77096    11 54 0       -37 00         5     Seargent
           2.76021    11 54 46.1    -38 45 40    5-5.5   Herald
           2.77569    11 54.7       -38 55         5     Verveer
           2.78122    11 54 44.5    -38 47 40            Herald

D. Seargent (The Entrance, N.S.W.).  Position very approximate due
   to twilight.  Object diffuse, with condensation, tail < 1o.
D. Herald (Kambah, near Canberra).  Scaled positions.  31-cm reflector.
   Tail 0o.5 long in p.a. ~ 200o.
A. Verveer (Perth Observatory, Bickley).  Diffuse with condensation,
   tail > 1o.  Communicated by M. P. Candy.


COMET MACHHOLZ (1978l)
     Total visual magnitude estimates: Sept. 25.39 UT, 10.1 (J.
Bortle, Brooks Observatory, 32-cm reflector); 29.40, ~ 10.5 (Bortle);
29.50, ~ 10.0 (P. L. Collins, Mount Hopkins Observatory, 20-cm
reflector); 29.52, 10.6 (D. E. Machholz, Los Gatos, California, 25-cm
reflector); 30.51, 10.6 (Machholz); Oct. 1.53, 10.7 (Machholz).

     Ephemeris continuation from the elements on IAUC 3273:

     1978 ET     R. A. (1950) Decl.     Delta     r      m1
     Sept.29     6 20.79    -33 26.3    1.604   1.868   10.7
     Oct.  4     6 10.30    -38 43.0
           9     5 56.16    -44 09.1    1.527   1.914   10.7
          14     5 37.21    -49 32.5
          19     5 12.03    -54 36.7    1.516   1.967   10.8
          24     4 39.23    -59 02.2
          29     3 58.29    -62 28.5    1.577   2.025   11.1


PERIODIC COMET SCHWASSMANN-WACHMANN 1
     According to Yamamoto Circ. No. 1896 and Hoshino Hiroba Circ.
No. 2323 visual and photographic observations by H. Kaneda and K.
Tsuchiya in Japan put this comet at magnitude ~ 12 on Sept. 13-14.


1978 October 3                 (3277)              Brian G. Marsden

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