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IAUC 3676: 1982d; N Aql 1982

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IAUC number 

                                                  Circular No. 3676
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 TEMPEL 2 (1982d)
     J. Gibson, Jet Propulsion Laboratory, reports that he has
recovered this comet on exposures with the 1.2-m Schmidt telescope at
Palomar, as shown below.  The comet is stellar in appearance.

     1982 UT             R. A. (1950) Decl.          m2
     Feb.  3.45836    12 03 23      +12 08.8       20-20.5
     Mar.  4.40350    11 47 24.85   +15 30 15.4    20-20.5
           4.44239    11 47 23.04   +15 30 33.0

     The comet's position is in close agreement with the predictions
by J. V. Carey in BAA Hdbk for 1982 and by S. Nakano on NK
399; also with the following previously unpublished prediction,
derived by the undersigned from observations 1956-1978, perturbations
by all nine planets and nongravitational forces considered:

       T = 1983 June 1.5355 ET    Epoch = 1983 May 26.0 ET
   Peri. = 190.9220                   e =   0 544893
   Node  = 119.1579   1950.0          a =   3.035338 AU
   Incl. =  12.4375                   n =   0.1863775
       q =   1.381404 AU              P =   5.288 years

     1982 ET     R. A. (1950) Decl.     Delta     r      m2
     Mar. 12    11 41.43    +16 24.1    2.685   3.659   20.3
          22    11 33.14    +17 28.2
     Apr.  1    11 25.04    +18 20.1    2.667   3.575   20.2
          11    11 17.81    +18 56.6
          21    11 11.99    +19 16.3    2.755   3.486   20.1
     May   1    11 07.97    +19 19.6
          11    11 05.93    +19 07.6    2.913   3.394   20.1
          21    11 05.90    +18 42.1
          31    11 07.81    +18 05.0    3.102   3.299   20.1


NOVA AQUILAE 1982
     P. M. Williams and A. J. Longmore, U.K. Infrared Observatory,
communicate the following infrared magnitudes, obtained with the
3.8-m U.K. infrared telescope at Mauna Kea: Mar. 5.65 UT, J = 8.36
H = 6.57, K= 5.04, L' (3.8 um) = 2.87; 6.66, 8.39, 6.56, 4.98,
2.79.  They remark that the object has a blackbody temperature of
1000 K, suggesting that a dust shell has already formed.


1982 March 10                  (3676)              Brian G. Marsden

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