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GlossarySynodic month

Definition

Synodic month

The average time from one new moon to the next, about 29.53 days. Starseed UK uses that average, anchored to a published new moon in January 2000, to estimate the phase.

This is not a live ephemeris. It does not give moonrise, moonset, or eclipses.

Where this word is used

The Moon Room explains. The Moon Room uses the synodic average described in this definition.
Moon phases as a reflection calendar explains. The article is the longer account of the same approximation.

See it on the constellation