ZHR Calculations

As the number of meteors detected with video systems is generally quite large, you can calculate hourly rates (ZHR) for different meteor showers. The three graphs in the diagram above belong to our video sytem MOVIE, three parallel working visual observers (DUBKA/MOLSI/NITMI) and the results of all IMO observers on August 11/12, 1993. We recorded the Perseids maximum in the Schwarzwald Mountains (Germany).