NASA · Space

Harvest Moon Over Erupting Mount Etna

A composite photograph captures the Harvest Moon rising over Sicily, Italy, during an eruption of Mount Etna.

The image shows the moon ascending as the sky darkens. Lower clouds reflect antitwilight colors, while ash and gas from Mount Etna are visible higher in the background. The pink band near the horizon is known as the Belt of Venus.

During a full moon, the moon and sun are opposite each other in the sky, meaning the moon rises as the sun sets. The lunar phase cycle is approximately 29.5 days, though the moon orbits Earth in about 27 days.

The September full moon is referred to as the Harvest Moon in some Northern Hemisphere cultures.

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