synodic month
The time from one full moon to the next (29.53 days). Also called a lunar monthThe time from one full moon to the next (29.53 days). More properly the synodic month. More.
Resources for Teachers
WARNING
WARNING. Never look directly at the bright surface of the Sun without suitable eye protection as permanent eye damage may result. This applies at any time and especially during the partial phases of a solar eclipse. Refer to “How to observe the Sun safely”.