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IAUC 4266: 1986 TN; 1986 TO = 1983 UH; 1986l; N Cyg 1986

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IAUC number 

                                                  Circular No. 4266
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


1986 TN; 1986 TO = 1983 UH
     R. H. McNaught, Siding Spring Observatory, reports that the
times of the observations of 1986 TN and 1986 TO given on IAUC
4262 should be corrected by +2 hr and provides additional observations
(to be published on the Nov. 16 MPCs) of the latter, a borderline
Aten object that C. M. Bardwell, Center for Astrophysics,
has identified with 1983 UH (observed on only two nights; see MPC
8526-8527), with the following linked orbital elements:

         T = 1987 Jan. 24.4952 ET    Epoch 1987 Jan. 5.0 ET
     Peri. =  43.5705                    e =   0.514901
     Node  = 125.7703   1950.0           a =   0.997652 AU
     Incl. =  19.8163                    n =   0.9890897
         q =   0.483959 AU               P =   0.996 year

     1986 ET     R.A. (1950.0) Decl.      p        r       V

     Oct. 27     2 58.39    -57 05.2    0.444    1.216    15.3
     Nov.  1     2 38.11    -60 36.0
           6     2 11.79    -63 37.5    0.423    1.147    15.3
          11     1 39.00    -66 02.1
          16     0 59.95    -67 43.9    0.406    1.069    15.4
          21     0 15.74    -68 38.2
          26    23 28.31    -68 41.7    0.387    0.983    15.5
     Dec.  1    22 39.83    -67 52.4
           6    21 52.06    -66 07.2    0.366    0.889    15.7
          11    21 06.08    -63 19.2
          16    20 22.92    -59 17.1    0.348    0.789    16.5
          21    19 43.98    -53 50.6
          26    19 10.84    -47 03.3    0.352    0.686    18.9


COMET WILSON (1986l)
     Total visual magnitude estimates: Oct. 17.80 UT, 10.4 (M. V.
Zanotta, Passo San Marco, Italy, 0.25-m reflector; tail 3' in p.a.
60; during total lunar eclipse); 22.47, 10.9 (J. Kobayashi,
Kumamoto, Japan, 0.31-m reflector; 2'5 tail in p.a. 60); 23.87, 10.5
(S. Korth, Monheim, West Germany, 0.36-m reflector).


NOVA CYGNI 1986
     Further visual magnitude estimates: Oct. 17.77 UT, 11.3
(Zanotta); 23.81 UT, 10.3 (Korth).


1986 October 30                (4266)              Brian G. Marsden

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