Except for February a Lunar month has fewer days.
New Moon starts the lunar month as the moon passes the sun from right to left. Using a number, the right ascension of the sun is the sun's position relative to the apparent stationary stars. The moon relative to the stars moves quickly. Measured by a number, the moon passes the right ascension of the sun more than twelve times in a year. Recall a year is the earth flying around the sun once.
For me, I need to create a model in three dimensions to grasp earth orbit sun, moon orbit earth.
