(meteorobs) Ursids predicted maximum - time and solar longitude?

David Entwistle david.entwistle at dial.pipex.com
Sun Jun 26 05:41:35 EDT 2005


Hello,

The 2005 Meteor Shower Calendar list the details for the Ursids as
follows.

Ursids
Active      : December 17-26;
Maximum     : December 22, 13h UT (sol = 270.270°);

http://www.imo.net/calendar/cal05.html#ursids

Although the difference is small (about 10 hours), the time and the sol
of the maximum don't quite correspond. Anyone know which figure is
correct?
-- 
David Entwistle


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