The Leonid meteor shower in 1999

Details The Leonid meteor shower in 1999 The Leonid meteor shower in 1999

Jun 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003jbaa..113..157b&link_type=abstract

Journal of the British Astronomical Association, vol.113, no.3, p.157-163

Astronomy and Astrophysics

Astronomy

Scientific paper

Poor weather hampered observations of the 1999 Leonid maximum from the British Isles, but several Meteor Section contributors were fortunate to cover the keenly-awaited peak under clear skies in the Sinai Desert, the Mediterranean area and the Canary Islands. The expected storm, with Zenithal Hourly Rate (ZHR) in excess of 1000 for a 40-minute period centred on 1999 Nov 18d 02h UT was seen. Two peaks, separated by a brief dip in activity, were found: in the first, around Nov 18d 01h 50m UT (Solar longitude(2000.0) = 235.28°), ZHR reached ca. 1700, while the second, stronger peak at Nov 18d 02h 05m UT (Solar longitude(2000.0) = 235.29°) reached ZHR ca. 3000. The times of the observed peaks agree well with predicted encounters between Earth and debris filaments in the Leonid meteor stream as derived by McNaught and Asher.

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