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IAUC 2727: P/SCHWASSMANN-WACHMANN 1; 1974b

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IAUC number 

                                                  Circular No. 2727
Central Bureau for Astronomical Telegrams
INTERNATIONAL ASTRONOMICAL UNION
Postal Address: Central Bureau for Astronomical Telegrams
Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
Cable Address: SATELLITES, NEWYORK
Western Union: RAPID SATELLITE CAMBMASS


PERIODIC COMET SCHWASSMANN-WACHMANN 1
     The following precise positions have been obtained by A. Mrkos
and Ruzena Petrovicova at the Klet Observatory:

     1974 UT             R. A. (1950) Decl.        m1    Observer
     Nov.  9.79196    22 59 32.38   + 0 24 58.2   17.2   Petrovicova
           9.80671    22 59 32.38   + 0 24 57.7            "
          13.79660    22 59 31.45   + 0 23 07.5   12.8   Mrkos
          13.78132    22 59 31.41   + 0 23 08.1            "
          14.76751    22 59 32.84   + 0 22 51.7   12.5     "
          14.78192    22 59 32.81   + 0 22 50.4            "
          15.76723    22 59 35.07   + 0 22 36.4          Petrovicova
          15.78321    22 59 35.04   + 0 22 37.2            "
          16.75480    22 59 37.68   + 0 22 28.8   13.0   Mrkos
          16.76921    22 59 37.64   + 0 22 28.9            "
          17.75469    22 59 41.37   + 0 22 25.2   13.0     "
          17.76910    22 59 41.21   + 0 22 23.3            "

Notes: Nov. 9.8, comet with stellar nucleus and diffuse coma; Nov.
13.8, circular disk-like homogeneous coma of diameter 1'; Nov.
14.8, round homogeneous coma with an eccentric condensation; Nov.
15.8, clearly visible central condensation and diffuse coma; Nov.
16.8, elongated central condensation and diffuse coma of diameter
about 1'; Nov. 17.8, possible secondary condensation to the
south-southwest of and about 1 magnitude fainter than and much more
diffuse than the primary.


COMET BRADFIELD (1974b)
     The following precise positions have been reported:

     1974 UT             R. A. (1950) Decl.       Mag.   Observer
     Aug. 10.21389    15 33 35.86   +45 25 03.1          Giclas
          11.16587    15 34 38.10   +45 03 31.3   17     Shao
     Sept.15.03589    16 14 36.37   +33 51 03.0   17.5   McCrosky

H. L. Giclas (Lowell Observatory).  Measurer: Mary Lou Kantz.
C. Y. Shao and R. E. McCrosky (Harvard College Observatory,
   Agassiz Station).  155-cm reflector.  Measurer: Shao.


1974 December 3                (2727)              Brian G. Marsden

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