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IAUC 4249: 1986l; N Cyg 1986; EY Cyg; 1986 PA

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                                                  Circular No. 4249
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 WILSON (1986l)
     Total visual magnitude estimates: Aug. 12.11 UT, 12.3 (J.
Bortle, Stormville, NY, 0.32-m reflector); 13.25, 10.9 (C. Spratt,
Victoria, BC, 0.20-m reflector); 14.18, 12.3 (Bortle); 14.25, 10.9
(Spratt); 15.00, 11.4 (P. Schmeer, Bischmisheim, West Germany,
0.21-m reflector); 15.45, 11.8 (A. Hale, Las Cruces, NM, 0.20-m
reflector); 15.89, 11.7 (G. M. Hurst, Basingstoke, England); 21.88,
12.1 (J.-C. Merlin, Le Creusot, France, 0.40-m reflector).


NOVA CYGNI 1986
     Visual magnitude estimates (mainly reported via J. Mattei,
AAVSO): Aug. 14.05 UT, 10.3 (Schmeer); 14.95, 10.1 (Hurst); 15.05,
10.1 (Schmeer); 15.88, 10.0 (Hurst); 16.40, 10.4 (Hale); 16.92,
9.4 (S. Korth, Monheim, West Germany); 19.11, 10.2 (C. Scovil,
Stamford, CT); 19.11, 10.3 (J. Griese, Stamford, CT); 20.92, 10.3
(Korth); 21.11, 10.0 (Bortle); 23.07, 10.2 (D. di Cicco, Sudbury,
MA); 25.03, 10.2 (L. Hiett, Hedgesville, WV); 26.04, 10.3 (S.
Knight, East Waterford, ME); 26.07, 10.4 (Hiett); 28.06, 10.3 (S.
O'Meara, Cambridge, MA); 28.32, 10.0 (E. Larr, Encicitas, CA).


EY CYGNI
     J. Mattei also informs us that this dwarf nova appears to be
undergoing a supermaximum (its first since 1979) and provides visual
magnitude estimates: Aug. 25.05 UT, 13.8 (G. Dyke, N. Dartmouth,
MA); 25.15, 12.8 (M. Heifner, Denver, CO); 25.25, 13.7 (Griese);
25.30, 14.0 (Scovil); 26.04, 13.4 (Dyke); 28.12, 12.3 (Heifner).


1986 PA
     Ephemeris continuation from the orbital elements on MPC 11052:

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

     Aug. 18    19 04.67    - 5 44.8    0.320    1.273    17.2
          28    18 32.26    -11 22.4
     Sept. 7    18 06.73    -16 51.2    0.327    1.151    17.7
          17    17 47.94    -21 55.1
          27    17 32.98    -26 38.1    0.345    1.007    18.3
     Oct.  7    17 17.36    -31 08.4
          17    16 54.30    -35 21.2    0.340    0.846    19.1


1986 August 28                 (4249)              Brian G. Marsden

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