A RARE celestial spectacle is set to delight astronomers and skygazers by turning the moon red.

The so-called 'super blood moon', the combination of a supermoon and a total lunar eclipse, will tinge the night sky in the UK early on Monday morning.

A blood moon occurs when the sun, Earth and moon all line up, resulting in the Earth casting a red shadow.

Next week's will be the last total lunar eclipse visible on Earth until May 2021. 

It will be particularly special because it occurs at the same time as the 'supermoon' - a full moon or a new moon that appears bigger in the sky from Earth, as it almost coincides with the closest that the moon comes to the Earth in its elliptic orbit.

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The phenomenon should be visible in the UK, weather permitting, between 2.30am and 7.48am, according to the Royal Museums Greenwich in London.

Experts have advised that the total eclipse will be between 4.41am and 5.43am, with 5.12am tipped as the best time to watch. 

The eclipse has also been dubbed the 'super blood wolf moon', as a full moon in January - the first full moon of the year - is called a wolf moon. 

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Viewers can even watch the events unfold without looking out the window, as Royal Museums Greenwich  will show live footage on Facebook from 4am.

The last blood moon took place in July 2018, though clouds largely obscured the sight in the UK.