TA e-circular

<title>TA e-circular</title>
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THE ASTRONOMER Electronic Circular No 449       1990 Sept 30 14.22UT
Ed:Guy M Hurst, 16,Westminster Close,  Kempshott Rise,  Basingstoke,
Hants, RG22 4PP, England. Telephone:   (0256)471074 Int:+44256471074
Telex: 94082518 Answerback: TAGUY                Microlink: MAG60138
JANET:GMH @ UK.AC.CAM.ASTRONOMY.STARLINK   GUYH@UK.AC.SUSSEX.CLUSTER
TELECOM GOLD: 10074:MIK2885                        PRESTEL 256471074
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COMET MUELLER (1990l)
J. Mueller reports her discovery of a comet on 1.2-m Oschin Schmidt
Telescope plates taken by C. Brewer and J. D. Mendenhall in the
course of the second Palomar Sky Survey.  There is a faint tail to
the west.  Mueller provides the following positions:
     1990 UT             R.A. (1950) Decl.         m1
     Sept.24.35833    1 36 13.41   - 2 28 01.9     18
          24.41389    1 36 12.20   - 2 28 16.7
          25.35486    1 35 45.97   - 2 34 02.2
          25.39306    1 35 45.21   - 2 34 11.6
IAUC 5102
E. Bowell, Lowell Obsevatory, provides the following measurements of
prediscovery films exposed by H. E. Holt, H. R. Holt, C. M.
Olmstead, and J. A. Brown with the 0.46-m Schmidt telescope at
Palomar:
     1990 UT             R.A. (1950) Decl.        m1
     Sept.17.41736    1 38 56.91   - 1 46 30.1   17.5
          17.45139    1 38 55.92   - 1 46 45.6
          19.44965    1 38 13.76   - 1 58 34.7   17.5
          19.48385    1 38 12.94   - 1 58 46.0
     Preliminary elliptical orbital elements by Bowell:
     T = 1990 July 26.020 ET          Peri. = 225.255
     e = 0.29913                      Node  = 135.971   1950.0
     q = 2.93334 AU                   Incl. =   9.223
       a =  4.18530 AU     n = 0.115110     P =   8.56 years

     1990 ET      R.A. (1950) Decl.     Delta      r       m1
     Sept.26     1 35.47    - 2 37.8    2.000    2.953    17.2
     Oct.  6     1 30.19    - 3 36.5
          16     1 24.21    - 4 28.4    1.988    2.967    17.2
          26     1 18.28    - 5 08.1
     Nov.  5     1 13.17    - 5 31.8    2.083    2.986    17.3
IAUC 5105

SATURN
A. Hale, Las Cruces, NM, communicates that, following an initial
report from S. Wilbur of the appearance of a new white spot on
Saturn on Sept. 25.2 UT, Las Cruces observers have confirmed that
the spot crossed the central meridian at the following estimated
times:  Sept. 28.097 (S. Murrell); 28.104 (Wilbur); 28.107 (C.
Tombaugh).
IAUC 5105
Mark Kidger, Tenerife, has independently notified us that he has
observed the new spot and details are awaited.

Guy M Hurst
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