関連ワード:
is the equinox the shortest day of the year is the equinox the longest day of the year is the equinox the longest day of the year at any given place is the winter equinox the shortest day of the year is the fall equinox the shortest day of the year is the spring equinox the shortest day of the year is the autumnal equinox the shortest day of the year is the spring equinox the longest day of the year is the summer equinox the longest day of the year is the autumnal equinox the longest day of the year
