draconic month

[ drey-kon-ik muhnth, druh-kon-ik ]

noun

1. month5

draconic month

noun

1. astronomy the mean time taken by the moon between successive passages through the ascending node of its orbit. It is about 2.5 hours shorter than the sidereal month Also callednodical month

Example Sentences

The moon's orbit likewise intersects the apparent path of the sun in two points, its two nodes; and the interval of time between its passage through one of these nodes and its return to that same node again is called a Draconic month, a month of the Dragon.

From Project Gutenberg

The first named period of 27.2 days is called the “Nodical Revolution of the Moon” or “Draconic Month,” the other period of 29.5 days is called the “Synodical Revolution of the Moon.”

From Project Gutenberg