Early Wednesday morning, if you live in the United States, the moon will bloom red, like a giant rose in the predawn sky. If you live in the western part of the United States, the eastern part of Asia or in Australia, you can watch the show unfold better than anywhere else.

The celestial event is known as a “blood moon” and it occurs as the moon slides behind Earth’s shadow during a lunar eclipse. Unlike last summer’s solar eclipse — where the moon momentarily blocked out the sun — a lunar eclipse is when Earth moves in between the sun and the moon. For half the planet, the cosmic alignment will turn the moon a coppery color for just over an hour.

Lunar eclipses are not uncommon, but the coincidence of Wednesday’s blood moon with other astronomical events is what makes this event special. First, because it is a “blue moon” — that means it is the second full moon to occur in a month. Also, it is a supermoon, meaning it will be closer to the Earth than usual, but the difference in size is hardly noticeable. Here’s what you need to know to catch this lunar trifecta some are calling the “super blue blood moon.”

When can I see the eclipse?

It takes several hours for the moon to pass through the Earth’s shadow. First, it dips through the penumbra — the outer, lighter part of the shadow — and then the umbra — which is the darker portion that creates the reddish glow, known as totality.