The established meteor showers as observed by CAMS
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文摘

A 2.5-year video surveillance of the night sky in the San Francisco Bay Area has detected 70 of the 95 known meteor showers.

In its orbit around the Sun, Earth encounters a number of complex meteoroid stream systems and their parent bodies that trace a disruption cascade along the secular perturbation cycle of the system.

Many streams in such complexes are still intimately associated with their parent bodies. The lack of twin showers, expected from precession of the nodal line, implies that meteor showers fade in several thousand years, possibly because the mm–cm sized meteoroids fall apart in smaller fragments.

In particular, the Taurid Complex was decomposed into 19 different streams, 7 of which have potential parent bodies in the 340-m to 1.7-km size range. This is a different population than the earlier proposed Taurid Complex parent bodies. They are much smaller and move in orbits more similar to the one large comet in the complex, Comet 2P/Encke.

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