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IAUC 6016: 1994n; 1994S

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                                                  Circular No. 6016
Central Bureau for Astronomical Telegrams
INTERNATIONAL ASTRONOMICAL UNION
Postal Address: Central Bureau for Astronomical Telegrams
Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
Telephone 617-495-7244/7440/7444 (for emergency use only)
TWX 710-320-6842 ASTROGRAM CAM     EASYLINK 62794505
MARSDEN@CFA or GREEN@CFA (.SPAN, .BITNET or .HARVARD.EDU)


COMET McNAUGHT-HARTLEY (1994n)
     The following precise positions have been reported:

     1994 UT             R.A. (2000) Decl.        m1    Observer
     July  7.62939   21 36 11.52   -41 57 13.1          Hartley
           7.70578   21 36 10.66   -41 57 42.6            "
           8.40087   21 36 03.98   -42 02 32.8   16.5   Helin
           8.42917   21 36 03.97   -42 02 42.0            "
           8.62804   21 36 01.89   -42 03 57.8          Hartley
           8.70443   21 36 01.06   -42 04 25.5            "

M. Hartley (Siding Spring).  1.2-m U.K. Schmidt telescope.  Measurer
   R. H. McNaught.  Rather bad seeing on July 8.628 UT.
E. Helin, K. Lawrence, J. Alu and K. Yau (Palomar).  0.46-m Schmidt
   telescope.  Measurer Alu.

     The parabolic orbit below, from seven observations July 5-8, is
very indeterminate.  It is quite probable that the comet is of short period.

     T = 1995 Jan. 6.084 TT           Peri. = 344.135
                                      Node  =  28.571   2000.0
     q = 1.94029 AU                   Incl. =  17.887

1994 TT     R. A. (2000) Decl.     Delta      r    Elong. Phase      m1
July  7    21 36.28    -41 52.9    2.032    2.909  142.9   12.2     16.2
     17    21 33.68    -42 59.3    1.910    2.827  148.6   10.8     15.9
     27    21 28.64    -43 57.8    1.809    2.747  151.9   10.0     15.7
Aug.  6    21 21.59    -44 40.0    1.730    2.668  151.9   10.3     15.5
     16    21 13.44    -44 57.7    1.674    2.591  148.3   11.8     15.3
     26    21 05.47    -44 45.1    1.639    2.517  142.4   14.2     15.1


SUPERNOVA 1994S IN NGC 4495
     Precise position obtained by A. Boattini and M. Tombelli at the
Piazzano Observatory, Florence, on July 5.80 UT: R.A. = 12 28 53.00,
Decl. = +29 24 37.4 (equinox 1950.0).
     Provisional CCD photometry obtained by M. Kidger and P. Hammersley
with the 0.82-m IAC-80 Telescope at the Teide Observatory on June 10.92 UT:
B = 15.33, V = 15.22, R = 15.02, I = 15.24.  Visual magnitude
estimate by L. Szentasko, Veresegyhaz, Hungary: June 17.86 UT, 14.4:.


1994 July 9                    (6016)              Brian G. Marsden

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