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St. Louis Science Center: Astronomy Fact Of The Day: September 22, 2021
The 2021 fall equinox occurs today at 2:14 pm. This occurs when the Sun crosses Earth's celestial equator at its descending node. After ...
September 22, 2021
The 2021 fall equinox occurs today at 2:14 pm. This occurs when the Sun crosses Earth’s celestial equator at its descending node. After today, the Sun will appear lower in the sky each day until the winter solstice on December 21, 2021.
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This press release was produced by St. Louis Science Center. The views expressed here are the author’s own.