2011-02-22

Encke Gap


The Encke Gap (or previously, the Encke Division) is a gap in Saturn's ring system. It occurs in the so-called outermost 'A'-ring, and is about 325km wide. The gap is caused by the presence of the very small moon Pan. While its named after Johann Encke, he is not known to have observed it himself, he gets the honour for his general contributions to the observations of the rings.




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