An upcoming eclipse is about to change the moon’s color as it passes through the night sky.

The Blood Moon, caused by a total lunar eclipse on Sept. 7, should be visible across all of the Eastern Hemisphere, Time and Date wrote. Anyone outside this part of the globe, except for eastern Brazil and western Alaska, will not see this phenomenon.

The eclipse happens when the Earth passes between the moon and the sun, and the moon passes through the darkest part of Earth’s shadow, or umbra, and causes the moon to look orange-red, according to NASA .

Those not within view of the eclipse can watch the Virtual Telescope Project’s live stream, which will air on its YouTube channel.

The eclipse and Blood Moon happen to coincide with September’s full moon, referred to as a Corn Moon, the Old

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