https://skychart.app/tags/seasons Seasons 2026-09-21T08:50:21.422Z Enodo Butterfly Equinoxes and solstices: the exact instants, the speed at which daylight changes, and what each turn of the year does to your observing nights. https://skychart.app/logo-88x31.jpg https://skychart.app/favicon.ico All rights reserved 2026, SkyChart <![CDATA[The 23 September Equinox: the Time of Year When Night Gains Fastest]]> 52 2026-09-21T06:00:00.000Z Jérôme Musialak https://skychart.app/authors/jerome-musialak