If tonight's full moon looks a little bigger, it's because the moon is a little closer than normal.
Known as a supermoon, the phenomenon occurs when the moon is at its closest approach to Earth. It'll only be about 357,000km away - when it's at its furthest, it's about 50,000km further away, thanks to its elliptical orbit.
A supermoon can look up to 14 percent bigger than normal, and 30 percent brighter.
Another supermoon is set to happen next month, with the moon coming marginally closer than it will tonight.
Taken a good photo of the supermoon? Send it to us at digital@newshub.co.nz
Newshub.
