Technically, the equinox is the instant when the sun appears directly over the equator, but Saturn's situation gives the rings an extended twilight.
They say that the vernal equinox, which is now, comes sooner because the year doesn't have an even number of days, at least on the calendars.— CNN Transcript Mar 20, 2008
Considering the natural difficulties of the coast, and that the equinox was at hand, the numerical disparity was not absolutely desperate.— St George's Cross
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