The phenomenon occurs when the two bright planets and the Moon appear close together from our vantage point on Earth, forming a triangular pattern.

According to Culbertson, Venus will be the higher of the two “eyes” while Saturn will be the lower, and the thin, crescent moon grin will appear slightly lower and farther north. The smile will be visible to the naked eye, although a backyard telescope or pair of binoculars should allow you to get a better look at the moon’s details.