The full harvest supermoon will rise on Tuesday evening at around 7.15pm BST.
At approximately 1:40am on Wednesday morning, a small shadow created by Earth will appear in the top right corner of the moon as the eclipse starts.
There are two types of shadow caused by Earth. The lighter one, called the penumbra, will not have too much effect but the umbra, the inner and darker shadow, will darken the Moon.
The partial eclipse will reach its maximum at 3.44am.
But do not expect there to be a big shadow visible on the supermoon as only around 4% of the Moon’s disc will be covered in darkness by the umbra shadow.
Where there are clear skies, even though it is a small partial eclipse, you will still be able to see it without the need for a telescope or binoculars.