| Summary: | The radar detection of meteor trails is discussed with reference to the equipment used, the methods developed and employed, and the results gained, particularly those concerning the astronomical aspects of meteoric phenomena.
Part A traces the development of a new method of detecting the radiants of the very numerous small-sized meteors. Their radiants tend to be close to the ecliptic plane but some high declination activity is present. The recognised meteor showers often lose their identity among the overwhelming number of faint meteors.
Part B deals with a survey of meteor rates. This has led to a better knowledge of the distribution of meteors and has revealed that some very large groupings of meteors exist. These “associations”, as they have been called, can embrace several meteor showers and appear to be of very recent occurrence on the astronomical time-scale, i.e. they are only some tens of millions of years old.
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