PDF ASTR320 Wednesday January 16, 2019 .edu

Vernal Equinox will slide 360 degrees, the annual motion of the Vernal Equinox (and Autumnal Equinox) is 360o/(25800 yrs) = 50.3"/yr • Since the Vernal Equinox is slipping, the dates when the Sun is in a given constellation slowly changes • That's why the months associated with certain "signs of the zodiac" no longer ................
................