The Orionid Meteor Shower Observed Over 70 Years

  • Jürgen RendtelEmail author
Chapter 1: Meteor Shower Activity, Forecasting, Dust Orbits


Visual Orionid meteor data dating back to 1944 were transformed into the standard format of the Visual Meteor Data Base (VMDB) of the International Meteor Organization (IMO) for systematic analysis. The strong 2006 Orionid return with a very low population index (r = 1.6) and a peak ZHR of 60 (about 2.5 of the average peak strength) resembled meteor showers connected with the returns of resonant meteoroids. An investigation of data dating back to 1928 yielded similar rate enhancements in 1936, further supporting the assumption that meteoroids trapped in the 1:6 resonance with Jupiter caused the unusual 2006 Orionid return.


Meteors Meteor showers Orionids Outburst Resonant meteoroids 


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© Springer Science+Business Media B.V. 2007

Authors and Affiliations

  1. 1.International Meteor OrganizationPotsdamGermany
  2. 2.Astrophysical Institute PotsdamPotsdamGermany

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