Cassini division

noun Cas·si·ni division \ ka-ˈsē-nē- \
variants: or less commonly Cassini Division

Definition of Cassini division

astronomy
:the dark region between the two brightest rings of Saturn
  • A sequence of smoothly undulating brightness fluctuations is observed in the outer Cassini division within a band located between Cassini division120,000 and 121,900 km from the centre of Saturn.
  • —Jeffrey N. Cuzzi et al.Nature20 Aug. 1981
  • This consensus lasted until 1675, when astronomer Jean Dominique Cassini reported a dark line (now known as the Cassini Division) within the rings, dividing them into two segments—an inner ring and an outer ring.
  • —Alan RubinAstronomyDecember 2002

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Origin and Etymology of cassini division

after Giovanni Domenico Cassini †1712 Italian engineer & astronomer


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