The Daylight Meteor Streams of 1947 May-August
Open Access
- 1 November 1947
- journal article
- research article
- Published by Oxford University Press (OUP) in Monthly Notices of the Royal Astronomical Society
- Vol. 107 (4) , 369-378
- https://doi.org/10.1093/mnras/107.4.369
Abstract
During the autumn and winter of 1946–1947 the well-known meteor showers were investigated by the radio echo technique on 4.2 m. wave-length. The results, both as regards activity and radiant areas, conformed closely to expectation from previous visual work. But during the investigation of the η Aquarids, which commenced on 1947 May 1 it was found that the well-known shower with its radiant near η Aquarii was not an isolated event, but merely the beginning of a great belt of meteoric activity extending towards the Sun observable only in daylight. Initially the main radiant of this new daylight shower was in Pisces, but the phenomena developed with great rapidity and by the end of June at least seven centres of considerable activity had been delineated, extending in the ecliptic up to a = 90°. This daylight activity continued throughout July and August, and comparison with the known major showers indicates that it is without precedent in extent and duration.Keywords
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