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IAUC 4307: Poss. N IN Her; 1987a

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IAUC number 

                                                  Circular No. 4307
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


POSSIBLE NOVA IN HERCULES
     H. Kosai, Tokyo Astronomical Observatory, reports the independent
discoveries by M. Sugano and M. Honda of a possible nova located
at R.A. = 18h41.3, Decl. = +15 15' (equinox 1950.0).  The following
visual magnitudes are available:  Jan. 25.847 UT, 8.5 (Honda);
27.847, 8.0 (Sugano); 27.851, 8.5 (Honda); 28.8, 7.5 (Sugano);
28.847, 8.5 (Honda); 30.15, 7.6 (P. Schmeer, Bischmisheim, West
Germany); 30.26, 7.6 (G. M. Hurst, Basingstoke, England).


COMET LEVY (1987a)
     C.-Y. Shao, Oak Ridge Observatory, reports the only available
precise position since Jan. 12:

           1987 UT            R.A.    (1950)   Decl.
           Jan. 29.43586    16 53 47.88    + 2 43 43.8

     Improved parabolic elements by B. G. Marsden, Center for
Astrophysics, from 12 observations, Jan. 8-29:

         T = 1986 Dec. 17.554 ET    Peri. =  95.300
                                    Node  =  16.398   1950.0
         q =   0.92198 AU           i     =  96.607

     1987 ET     R.A. (1950)  Decl.     Delta      r       m1
     Jan. 25    16 59.26    + 4 15.4    1.355    1.143    11.7
          30    16 53.05    + 2 31.9
     Feb.  4    16 45.87    + 0 43.2    1.256    1.249    12.0
           9    16 37.40    - 1 12.2
          14    16 27.29    - 3 15.6    1.143    1.364    12.1
          19    16 15.10    - 5 28.2
          24    16 00.38    - 7 50.9    1.031    1.485    12.3
     Mar.  1    15 42.64    -10 22.8
           6    15 21.49    -13 01.3    0.939    1.609    12.4
          11    14 56.81    -15 40.2
          16    14 28.90    -18 09.9    0.893    1.735    12.6
          21    13 58.69    -20 19.3
          26    13 27.66    -21 58.5    0.916    1.862    13.0
          31    12 57.56    -23 03.4
     Apr.  5    12 29.91    -23 36.1    1.015    1.988    13.5

     Visual magnitude estimate by D. H. Levy, Tucson, AZ (0.40-m
reflector):  Jan. 29.52 UT, 12.0.


1987 January 30                (4307)            Daniel W. E. Green

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