The April Lyrids (LYR#006)
Abstract
A case study is presented on the April Lyrid meteor shower, based on 23083 orbits observed between solar longitude 20° and 45°. A reference orbit was derived by an iterative procedure resulting in 3220 Lyrid orbits that fulfil the low threshold D-criteria. The orbit concentration is very dense near the stream maximum with a compact radiant with more dispersed orbits at the edges of the activity period. The radiant drift was compared for different threshold classes of D-criteria. An activity profile was obtained, and the time of maximum was found to be at solar longitude 32.18 ± 0.05° instead of 32.3°. The stream shows a remarkable spread in inclination and geocentric velocities.
- Publication:
-
eMeteorNews
- Pub Date:
- January 2019
- Bibcode:
- 2019eMetN...4....4R
- Keywords:
-
- Lyrids;
- EDMOND;
- CAMS;
- SonotaCo;
- C/1861 G1