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IAUC 3179: 1978 CA (OBJECT SCHUSTER)

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                                                  Circular No. 3179
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


1978 CA (OBJECT SCHUSTER)
     R. M. West, European Southern Observatory, provides the following
precise positions from the exposures by H.-E. Schuster (IAUC
3174).  He notes that the object is brightening rapidly; the
magnitude is very difficult to estimate but could be as bright as 12.

     1978 UT             R. A. (1950) Decl.
     Feb.  8.24581    10 29 10.22   -27 57 58.4:
           9.26316    10 28 47.17   -27 21 32.3
          10.22303    10 28 23.30   -26 44 01.7
          11.15728    10 27 57.69   -26 04 15.7
          11.23831    10 27 54.19   -26 00 41.2
          12.14624    10 27 26.86   -25 18 30.4
          13.28617    10 26 45.41   -24 20 42.4
          14.28137    10 26 07.51   -23 25 19.8
          15.20557    10 25 30.61   -22 29 38.4

     The following orbital elements, by B. G. Marsden, satisfy the
above positions within 2":

       T = 1978 June 5.151 ET
   Peri. = 102.060                    e =   0.21495
   Node  = 160.693   1950.0           a =   1.12477 AU
   Incl. =  26.123                    n =   0.826240
       q =   0.88301 AU               P =   1.19 years

     1978 ET     R. A. (1950) Decl.     Delta     r     Mag.
     Feb. 27    10 13.08    - 1 56.3    0.152   1.139   12.9
     Mar.  1    10 10.07    + 3 38.1    0.143   1.132   12.7
           3    10 06.71    + 9 51.3    0.136   1.125   12.7
           5    10 03.15    +16 36.8    0.132   1.118   12.7
           7     9 59.21    +23 43.3    0.129   1.111   12.8
           9     9 54.91    +30 55.9    0.129   1.104   12.9
          11     9 50.23    +37 58.5    0.131   1.097   13.1
          13     9 45.14    +44 37.6    0.135   1.090   13.3
          15     9 39.59    +50 43.5    0.141   1.083   13.5
          17     9 33.50    +56 11.9    0.148   1.076   13.7
          19     9 26.76    +61 02.1    0.156   1.069   14.0
          21     9 19.22    +65 16.3    0.166   1.061   14.2
          23     9 10.66    +68 57.8    0.176   1.054   14.4

      Mag. = 16.5 + 5 log Delta + 5 log r + 0.023 (phase angle)


1978 February 24               (3179)              Brian G. Marsden

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