The Sky Tonight Update: March 12, Full Moon

full moon, sky tonight update

This March 12, the Moon will be located on the opposite side of the Earth as the Sun and its face will be fully illuminated. This phase occurs at 14:54 UTC. This full moon was known by early Native American tribes as the Full Worm Moon because this was the time of year when the ground would begin to soften and the earthworms would reappear. This moon has also been known as the Full Crow Moon, the Full Crust Moon, the Full Sap Moon, and the Lenten Moon.

At full moon, the moon and sun are on a line, with Earth in between. It’s as though Earth is the fulcrum of a seesaw, and the moon and sun are sitting on either end of the seesaw.

In many ways, a full moon is the opposite of a “new moon.” At both the new and full phases, the moon is on a line with the Earth and sun. At new moon, the moon is in the middle position along the line. At full moon, Earth is in the middle.

Full moon always comes about two weeks after new moon, when the moon is midway around in its orbit of Earth, as measured from one new moon to the next.

A full moon looks full because it’s opposite Earth from the sun, showing us its fully lighted hemisphere or day side.

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