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ansa
A portion of a ring that appears farthest from the disk of a ringed planet in an image.
PLANETS AND MOONS
One of the extremities of a
lenticular galaxy
. The word comes from the Latin for "handle," since the earliest views of
Saturn
's rings suggested that the planet had two handles extending on either side. Plural is
ansae
.
GALAXIES
Also on this site:
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