Rare moon events: Black Moon
Black Moon: This is a term used to describe a month without a full moon. It can refer to either the absence of a full moon in a calendar month or the second occurrence of a new moon in a single calendar month.
Black Moon: This is a term used to describe a month without a full moon. It can refer to either the absence of a full moon in a calendar month or the second occurrence of a new moon in a single calendar month.