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THE ASTRONOMER Electronic Circular No 1361      1998 Nov 28 19.25UT
Ed:Guy M Hurst, 16,Westminster Close, Kempshott Rise,  Basingstoke,
Hants, RG22 4PP,England.Telephone/FAX(01256)471074Int:+441256471074
INTERNET: GUY@TAHQ.DEMON.CO.UK             GMH at AST.STAR.RL.AC.UK
WORLD WIDE WEB                    http://www.demon.co.uk/astronomer
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COMET 1998 W1
T. B. Spahr, University of Arizona, reports his discovery of
another comet with the 0.41-m f/3 Schmidt telescope in the course
of the Catalina Sky Survey.  There is no visible tail, and the
round coma is 18" in diameter.

     1998 UT             R.A. (2000) Decl.        m1
     Nov. 16.38714    4 33 23.01   -10 36 32.7
          16.39505    4 33 22.71   -10 36 29.4
          16.40318    4 33 22.31   -10 36 25.8   16.5
          17.31281    4 32 43.95   -10 29 41.1
          17.31659    4 32 43.79   -10 29 39.2
IAUC 7052

The following elements are parabolic but probably the comet
is of short period:

T  1999 Feb  20.7620 TT      w  18.97600 )
e  1.00000000                O  92.92400 ) 2000.0
q  1.5836200 A.U.            i  29.33200 )
Source: IAUC 7053    Positions are geocentric

Ephemeris by G.Hurst using EPH.EXE by Nick James:

m = 12.5 + 5.0 log R + 10.0 log r

  Date    R.A. (2000) Dec.     R       r     Elong  Mag.    Motion
          h  m       o  '     (AU)    (AU)     o          "/hr P.A.
1998 Nov
  28.00   4 23.69   -8 33.6   1.031   1.949  150.1  15.5    50  315
1998 Dec
   3.00   4 18.74   -7 13.6   0.992   1.912  150.4  15.3    58  319
   8.00   4 13.57   -5 35.9   0.959   1.876  149.7  15.1    66  324
  13.00   4  8.37   -3 40.3   0.931   1.842  148.0  15.0    73  328
  18.00   4  3.37   -1 27.6   0.910   1.809  145.5  14.9    79  333
  23.00   3 58.80   +1  0.8   0.895   1.778  142.2  14.8    84  338
  28.00   3 54.90   +3 42.7   0.886   1.749  138.5  14.7    88  343


SUPERNOVA 1998es IN NGC 632
E. Halderson, M. Modjaz, T. Shefler, J. Y. King, M. Papenkova,
W. D. Li, R. R. Treffers, and A. V. Filippenko, University of
California at Berkeley, report their discovery of an apparent
supernova in NGC 632 during the course of the Lick Observatory
Supernova Search with the 0.8-m Katzman Automatic Imaging Telescope
(KAIT).  SN 1998es was discovered and confirmed on unfiltered
observations taken on Nov. 13.3 (mag about 14.6) and 14.4 UT
(mag about 14.3).  The new object is located at:
R.A. = 1h37m17s.50, Decl. = +5o52'50".3 (2000.0), which is about
11".4 north of the nucleus of NGC 632.  KAIT images of the same
field taken on Oct. 24.3 (limiting mag about 16.0) and Oct 21.3
(limiting mag about 19.5) showed nothing at the position of the
supernova.
IAUC 7050 (extract)

Guy M Hurst