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IAUC 7052: 1998 W1; LEONID METEORS 1998; C/1998 M5; C/1995 O1

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                                                 Circular No. 7052
Central Bureau for Astronomical Telegrams
INTERNATIONAL ASTRONOMICAL UNION
Mailstop 18, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
IAUSUBS@CFA.HARVARD.EDU or FAX 617-495-7231 (subscriptions)
BMARSDEN@CFA.HARVARD.EDU or DGREEN@CFA.HARVARD.EDU (science)
URL http://cfa-www.harvard.edu/iau/cbat.html
Phone 617-495-7244/7440/7444 (for emergency use only)


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


LEONID METEORS 1998
    Early reports indicate that there was substantial Leonid
activity earlier than expected, with a high proportion of very
bright fireballs, some brighter than mag -8, with enduring trains.
Visual Leonid rates increased from about 10/hr around Nov. 16.4 UT
(G. Zay, Descanso, CA) to about 140-150/hr around Nov. 16.9-17.1
(M. Langbroeck and H. Zhao, Delingha, Qinghai, China; and K.
Hornoch, Lelekovice, Czech Republic).  A. Pereira (Cabo da Roca,
Portugal) observed 214 Leonids during Nov. 17.13-17.24.  However,
A. Fitzsimmons reports that a group of observers at La Palma
observed about 1000 Leonids/hr around Nov. 17.15, increasing to
about 2000/hr around Nov. 17.19.  J. Gluckman, D. Healy, and others
near Sierra Vista, AZ, reported 423 Leonids during Nov. 17.36-17.45,
while A. Hale (Las Cruces, NM) reported only 126 Leonids during
Nov. 17.38-17.47.


COMET C/1998 M5 (LINEAR)
     Visual m_1 estimates:  Oct. 20.83 UT, 10.5 (A. Kammerer,
Ettlingen, Germany, 0.20-m reflector); Nov. 7.76, 10.4 (R. Haver,
Frasso Sabino, Rieti, Italy, 0.15-m reflector); 12.99, 10.4 (J.
Bortle, Stormville, NY, 0.41-m reflector); 16.85, 10.9 (C.
Vitorino, Cabo da Roca, Portugal, 0.25-m refl.).


COMET C/1995 O1 (HALE-BOPP)
     Visual m_1 estimates:  Oct. 13.53 UT, 9.9 (D. A. J. Seargent,
Cowra, N.S.W., 10x50 binoculars); 20.80, 10.5 (A. Pearce, Nedlands,
W. Australia, 0.41-m reflector); Nov. 15.07, 10.8, 1'.5 (J. G. S.
Aguiar, Joaquim Egidio, Brazil, 0.23-m reflector).

                      (C) Copyright 1998 CBAT
1998 November 17               (7052)            Daniel W. E. Green

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