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IAUC 3216: 1978f; 1978g; 1978h

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IAUC number 

                                                  Circular No. 3216
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     Telex: 921428
Telephone: (617) 864-5758


COMET MEIER (1978f)
     H. L. Giclas, Lowell Observatory, communicates the following
precise positions.  Measurer: M. L. Kantz.

     1978 UT             R. A. (1950) Decl.          m1
     Apr. 27.24167     7 18 41.38   +53 50 13.5    9.5-10
          28.18889     7 19 42.05   +53 36 38.8    9.5-10

     J. S. Neff, V. V. Smith, M. Claussen and D. Riggenberg, University
of Iowa, report that spectroscopic observations on May 1.1 UT
(range 3150-8600 A) show a moderately strong continuum, strong CN
emission and moderate C2 emission.


PERIODIC COMET CLARK (1978g)
     Following a tentative report from T. Seki that he had recovered
this comet on Apr. 13, Y. Kozai, Tokyo Astronomical Observatory,
cables further observations by Seki on Apr. 26 and 27.  Positions
are in good agreement with the prediction on IAUC 3155 assuming the
correction Delta-T = -0.04 day.  The following observations are available:

     1978 UT             R. A. (1950) Decl.        m1    Observer
     Apr. 13.60347    10 36.86      +22 24.8      ~18    Seki
          26.5309     10 32 45.9    +21 37 15      18      "
          27.5330     10 32 40.1    +21 32 11      18      "
          30.17166    10 32.4       +21 17         19    Schwartz

T. Seki (Geisei).  Images poor and faint (on Apr. 26 and 27).
G. Schwartz and C.-Y. Shao (Harvard College Observatory, Agassiz
   Station).  Image somewhat diffuse (through clouds).


PERIODIC COMET GIACOBINI-ZINNER (1978h)
     Shao and Schwartz have also recovered this comet as a faint,
diffuse spot on exposures with the Agassiz telescope.  The positions
are in good agreement with the prediction on IAUC 3167.

     1978 UT          R. A. (1950) Decl.       m2
     Apr. 30.26185   16 03.0     + 7 55      ~20.5
     May   1.26075   16 02.3     + 8 06      ~20.5


1978 May 1                     (3216)              Brian G. Marsden

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