読売新聞から -お彼岸 equinoctial week 英語歳時記

The week with Autumnal Equinox Day in the middle is called the equinoctial week.
People visit graves and offer sweet bean cakes on the family altar in commemoration of their ancestors.

春分の日を中日とした1週間を秋の彼岸と言います。墓参りをし、おはぎを仏壇に供えるなどして先祖を供養します。