On Friday the 12th of December, we have the biggest Full Moon for 15 years!

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The Moon orbits the Earth in an elliptical (oval-shaped) orbit, and during tonight's full Moon, it will be closer than usual - only 356,600km away from Greenwich! (which is about 363,000km away from the centre of the Earth).

On average, the Moon is 378,000 km away, and at furthest, it is 399,300 km away from the Earth's surface. So tonight's full Moon is 6% closer than average, and so 11% brighter than average! (Or, to put it another way, it is 11% bigger & 20% brighter than when the Moon is at its furthest point away from us).