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Astron. Astrophys. 325, 1249-1252 (1997)

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The behavior of the Perseid stream in 1996

Arkadiusz Olech

Warsaw University Observatory, Al. Ujazdowskie 4, PL-00478 Warszawa, Poland (olech@sirius.astrouw.edu.pl)

Received 21 January 1997 / Accepted 18 March 1997

Abstract

The visual observations of 1996 Perseids are reported. Based on over 700 hours of observing time an activity profile from July 15 to August 24 is given. The discovery of a small dip in the activity profile near solar longitude [FORMULA] (2000.0) is also presented. The maximal Zenithal Hourly Rates (ZHRs) equal to [FORMULA] were noted on August 12.026 ([FORMULA]). The possibility of the presence of a double peak with maximal values of ZHR at [FORMULA] and [FORMULA] is also discussed. The minimum of a population index r were observed around the night of the maximum.

Key words: meteoroids, meteors – interplanetary medium

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© European Southern Observatory (ESO) 1997

Online publication: April 28, 1998

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