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Astron. Astrophys. 343, L94-L96 (1999)

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Letter to the Editor

The Giacobinid meteor stream observed by radar in 1998

M. imek and P. Pecina

Astronomical Institute of the Academy of Sciences of the Czech Republic, CZ-251 65 Ondejov, Czech Republic (simek; ppecina@asu.cas.cz)

Received 11 December 1998 / Accepted 14 February 1999


The return of the 1998 Giacobinid meteor shower associated with the comet 21P/Giacobini-Zinner was observed by meteor radar at Ondejov, Czech Republic. The duration of the intense part of the shower was approximately 3 hours. Though the limiting magnitude of the radar is +8 [FORMULA], only overdense echoes down to +4.2 [FORMULA] were analyzed. A maximum number of 82 such shower meteors was recorded in the ten minute interval 13h 00m-13h 10m UT corresponding to solar longitude [FORMULA] (J2000.0). The mass-distribution index [FORMULA] indicates a lack of faint meteors in the most dense part of the stream.

Key words: comets: individual: 21P/Giacobini-Zinner – meteors, meteoroids

Send offprint requests to: P. Pecina

© European Southern Observatory (ESO) 1999

Online publication: March 1, 1999