Fall has officially begun here in western Massachusetts.
In fact, fall started at 9:54 p.m. Saturday evening.
To help mark the first day of autumn, UMass Amherst held a sunwheel and sky-watching event.
The event marks the change of seasons, when the days and nights are nearly equal in length in the northern hemisphere.
“This is building on an ancient tradition to create a teaching tool for students to give them a sense on how these things work,” said Stephen Schneider, UMass professor. “How the sun, moon and different objects in the sky shift over the course of the year.”
That professor was on hand to explain the seasonal positions of the earth, sun and moon, and answer any questions about astronomy.