The Lyrid Meteor Stream: Orbit and Structure

Details The Lyrid Meteor Stream: Orbit and Structure The Lyrid Meteor Stream: Orbit and Structure

Jun 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008em%26p..102...91p&link_type=abstract

Earth, Moon, and Planets, Volume 102, Issue 1-4, pp. 91-94

Computer Science

1

Lyrid Meteor Stream, Meteoroids, Photographic Meteor Orbits

Scientific paper

A filamentary structure in the Lyrid meteor stream based on photographic orbits available in the IAU Meteor database is identified and studied. About 17 Lyrids are found in the database and the stream mean orbit is derived. The shower radiant is compact, of a size 2° × 1.5°. Applying a stricter limiting value for the Southworth-Hawkins D-criterion, two distinct filaments in the stream, on a short and a long period orbit, are separated. To confirm their consistency as filaments, their orbital evolution over 5,000 years is investigated.

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