Loading Events

New Moon

  • This event has passed.
New Moon

New Moon. By the modern definition, New Moon occurs when the Moon and Sun are at the same geocentric ecliptic longitude. The part of the Moon facing us is completely in shadow then. Pictured here is the traditional New Moon, the earliest visible waxing crescent, which signals the start of a new month in many lunar and lunisolar calendars. – NASA

Official Calendar

2022 Vatican Observatory calendars now available for purchase in our e-store!