Astronomical and editorial sources
These references define the phase terminology, event times and civil-date conventions used throughout the calendar.
Astronomical references
- U.S. Naval Observatory: Dates of Primary Phases of the Moon — published tables of new, quarter and full Moon events.
- U.S. Naval Observatory: phases and illuminated fraction — terminology and phase definitions.
- IANA Time Zone Database — civil time-zone identifiers and the transition rules used to show local dates and times.
Eclipse and image sources
A source collection does not grant one licence to every file. The licence and credit for an individual image must be checked before publication.