Winter Solstice

This event marks the astronomical first day of winter in the Northern Hemisphere and is important for many diverse groups of people.

Autumn Equinox

This event marks the astronomical first day of fall in the Northern Hemisphere and is important for many diverse groups of people.

Summer Solstice

This event marks the astronomical first day of summer in the Northern Hemisphere and is important for many diverse groups of people.

Spring Equinox

This event marks the astronomical first day of spring in the Northern Hemisphere and is important for many diverse groups of people.