December 2017 ‘supermoon’: Everything you need to know

December 2017 ‘supermoon’: Everything you need to know

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It isn’t as rare as a solar or lunar eclipse but it is the only time the event has occurred this year. The phenomenon happens when our satellite reaches its closest point to the Earth, which is also known as a “pedigree moon,” as opposed to at “apogee” when it’s farthest away. Although it might not be obvious to the naked human eye, the Moon will appear about 7 per cent larger and 15 per cent brighter than usual. The supermoon will be most noticeable at “moonrise” on Sunday and “moonset” on Monday morning. It will be at its brightest at 1 am CET when the satellite is at its highest above the horizon. This is the first in a “supermoon trilogy,” according to Nasa, with two other lunar shows due on 1st and 31st of next month.

TOPSHOT - A commerical jet flies in front of the moon on its approach to Heathrow airport in west London on November 13, 2016. Tomorrow, the moon will orbit closer to the earth than at any time since 1948, named a 'supermoon', it is defined by a Full or New moon coinciding with the moon's closest approach to the Earth. / AFP / Adrian DENNIS (Photo credit should read ADRIAN DENNIS/AFP/Getty Images)
TOPSHOT – A commerical jet flies in front of the moon on its approach to Heathrow airport in west London on November 13, 2016.