On hand were astronomer Jim Keating, who spoke about what the equinox means in terms of astronomy, and Sun Circle sculptor Bruce Greenwald. Nadeau said she learned something interesting about the various dates when the equinox falls.
“He told us that the vernal equinox was on March 21 (in) 2007,” Nadeau said of Keating. “Now it’s on the 20th until 2044.”
Staff writer Ethan Forman can be reached at 978-338-2673, by email at firstname.lastname@example.org or on Twitter at @DanverSalemNews.