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The nearby perigee Full Moons appear about 14 per cent bigger and 30 per cent brighter than Full Moons that occur near the apogee in the Moon's orbit.
"The supermoons are a great opportunity for people to start looking at the Moon, not just that once but every chance they have!" said Noah Petro, a research scientist from NASA's Goddard Space Flight Centre.
The Moon will lose its brightness and take on an eerie, fainter-than-normal glow from the scant sunlight, giving it a reddish hue. Totally eclipsed Moons are for this reason called "blood Moons".
With the total eclipse, it will be a royal spectacle indeed, a "super blue blood" Moon, NASA said.