Seasonal Twilight

  Twilight is the shortest during the spring and fall. In the morning, before sunrise, daylight comes on quickly closest to the equinoxes. In the evening, after sunset, night falls quickly, as the sky fades after sunset. Equinoctial twilights can be 45 minutes in the mid-temperate latitudes of North America. However, summer twilights are the longest of the year! In … Continue reading

  • Share on social media

    Visit us on Facebook
    Visit us on Twitter
    Share on Google+
    http://classicalastronomy.com/category/seasonal-sun/the-sun-at-the-horizon/">
    RSS
    SHARE