Sherpa Posted March 19, 2021 Share Posted March 19, 2021 Tomorrow is a big day in the astronomy world. At 9:37 GMT, occurs the vernal, or spring equinox, as the sun will pass the celestial equator, crossing from the south to north hemisphere. No matter where you live on earth, the sun will rise due east and set due west. (Unless, of course, you are at the north or south pole, where there is no east or west). A commonly stated error is that there will be precisely as much time in daylight and darkness. That is not true because since the earth's atmosphere refracts sunlight giving us about eight mins more daylight at the equinox. The day of exact equal daylight and darkness is always a few days earlier. 4 Quote Link to comment Share on other sites More sharing options...
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