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IAUC 3477: 1980d; NOVALIKE OBJECT IN Vul

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IAUC number 

                                                  Circular No. 3477
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 617-864-5758


PERIODIC COMET WILD 3 (1980d)
     Further precise positions have been reported as follows:

     1980 UT             R. A. (1950) Decl.        Observer
     May   9.17847    13 09 14.82   +11 28 52.9    Giclas
          10.27257    13 08 37.11   +11 22 36.6    Bowell
          14.17383    13 06 35.87   +10 58 02.9    Schwartz
          17.10972    13 05 18.59   +10 37 13.2    Fogelin

H. L. Giclas and E. Bowell (Lowell Observatory).
G. Schwartz and E. Fogelin (Harvard College Observatory, Agassiz
   Station).  Measurers: C.-Y. Shao and Fogelin.

     Improved orbital elements by B. G. Marsden:

       T = 1980 Oct. 5.215 ET
   Peri. = 179.322                    e =   0.36795
   Node  =  72.018    1950.0          a =   3.62141 AU
   Incl. =  15.471                    n =   0.143017
       q =   2.28891 AU               P =   6.89 years

     1980 ET     R. A. (1950) Decl.     Delta     r      m1
     May  31    13 02.16    + 8 36.2
     June 10    13 02.98    + 6 50.1    1.848   2.424   15.7
          20    13 06.28    + 4 52.3
          30    13 11.89    + 2 46.0    2.028   2.383   15.8
     July 10    13 19.55    + 0 33.7
          20    13 29.05    - 1 42.5    2.222   2.349   15.9
          30    13 40.18    - 4 00.9
     Aug.  9    13 52.77    - 6 19.9    2.419   2.322   16.1

                  m1 = 10.5 + 5 log Delta + 10 log r


NOVALIKE OBJECT IN VULPECULA
     J. Mattei communicates the following visual magnitude estimates
by AAVSO members: Feb. 2.5 UT, 8.8 (W. Morrison, Peterborough,
ON); 28.5, 9.1 (Morrison); Mar. 15.4, 9.3 (Morrison); 19.4, 9.7 (J.
DeYoung, Palmyra, VA); Apr. 5.1, 9.9 (P. Wils, Niel, Belgium); 7.1,
9.9 (Wils); 13.1, 10.0 (Wils); 19.3, 10.1 (T. Wilson, Huntington,
WV); 22.3, 10.5 (F. Mayer, Barberton, OH); May 9.2, 10.8 (Mayer).


1980 May 21                    (3477)              Brian G. Marsden

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