Martin, Martha Evans, d. 1925 · New York and London, Harper & Brothers · leaf 240
enthought that they have even been seen to beso through a telescope. Being all in the same plane, they form aflat, broad, thin ring, so thin that when theedge of the ring is turned toward us we can-not see them at aU. We never see them attheir full breadth. If we did, Saturn woiddbe much brighter… … SATURN that at the time of Saturns equinoxes theedge of the rings is turned toward us, andthey practically disappear. Half-way be-tween the equinoxes they are open again asfar as they ever are to our view. This iswhy Saturn alternates in brightness. Thetimes of his equinoxes occur every…
Planets
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