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IAUC 3991: 1984o; 1984 QA

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IAUC number 

                                                  Circular No. 3991
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 MEIER (1984o)
     Rolf Meier, Ottawa, reports the discovery of his fourth comet.
The following observations are available:

    1984 UT          R.A.   (1950.0)   Decl.    m1   Observer

    Sept.18.035     15 09.2       +11 19        12   Meier
         18.15453   15 08.95      +11 14.1           Gibson
         19.00577   15 07 17.86   +10 37 53.2        Schwartz

R. Meier (Indian River Observatory).  0.4-m reflector, 56 x.
   Object diffuse with condensation, no tail.  Coma diameter 100" .
J. Gibson (Palomar Mountain Observatory).  1.2-m Schmidt.  Two-min
   exposure showing sharp trail (m2 ~ 16) with slight diffuseness.
G. Schwartz (Oak Ridge Observatory).  0.4-m astrograph.  Extremely
   diffuse image; no condensation.  Measurer: D. W. E. Green.

     Total visual estimates by Green and by S. O'Meara (Harvard,
MA, 0.20-m reflector) on Sept. 19.01 UT gave mv = 11.7.


1984 QA
     Ephemeris continuation from the elements on MPC 9073:

     1984 ET     R.A. (1950.0) Decl.      p        r      Mag.

     Sept.17    23 00.93    -23 24.0    0.254    1.243    15.9
          22    22 48.01    -24 43.1
          27    22 38.94    -25 25.1    0.338    1.293    16.8
     Oct.  2    22 33.00    -25 41.3
           7    22 29.55    -25 39.2    0.432    1.336    17.6
          12    22 28.11    -25 24.1
          17    22 28.27    -24 59.2    0.532    1.372    18.2
          22    22 29.77    -24 26.9
          27    22 32.38    -23 48.5    0.637    1.401    18.7
     Nov.  1    22 35.93    -23 05.4
           6    22 40.26    -22 18.2    0.745    1.424    19.1
          11    22 45.25    -21 27.9
          16    22 50.79    -20 34.7    0.854    1.440    19.4
          21    22 56.81    -19 38.9
          26    23 03.27    -18 40.9    0.961    1.449    19.7
     Dec.  1    23 10.11    -17 40.9
           6    23 17.29    -16 39.0    1.065    1.451    19.9


1984 September 19              (3991)              Brian G. Marsden

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