There will be a total of three supermoons before the year’s end, but the one coming up this weekend, which will include a lunar eclipse, is sure to be the best yet. According to a report from Discovery News, stargazers and astronomy enthusiasts around the world will break out their binoculars and telescopes to witness one of the most amazing astronomical events for years to come.

The supermoon lunar eclipse will happen on Sunday, September 27. It is actually three different events rolled into one, and it will be difficult to ignore the moon in the sky this weekend. The most familiar event is the full moon, which occurs roughly once a month. The moon will appear slightly larger in the sky than normal this weekend, however, as it is closer to the Earth than normal – an event called perigee.

Last but not least, the moon will also undergo a lunar eclipse, when the Earth blocks out the light from the sun on the moon’s surface, making it appear as a dark red silhouette of itself in the sky.

This moon will also be special because it will appear in the sky as a “blood moon,” when the lunar eclipse causes the sun’s light to refract around the Earth’s atmosphere, filtering out all but the largest wavelengths – red.

Viewers in North and South America, Europe, Africa, western Asia and the eastern Pacific region will have perfect spots from which to view the event.