First (and last) supermoon of 2017 is coming

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This will mean that the on the night of the December 3 the moon will be seven per cent larger and 16 per cent brighter than usual.

By some measures, Sunday night's full moon is the only supermoon of 2017.

That's when the moon is full and illuminated at the same time it comes closest to the Earth during its orbit.

In December, the moon will be closest to the Earth on December 4 at 2.15 pm (IST), when it will be 3,57, 492 km away from Earth.

A supermoon occurs when the sun, moon and Earth align, and a full or new moon aligns with the sun's lunar orb. Since it is the second full moon of the month, it will also be a "blue moon", which only happens every two and a half years on average. Hence, for those in the Northern hemisphere, it is a cold supermoon.

Too busy to for moon viewing on Sunday?

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Woods also revealed that her daughter has to wear orthopedic leg braces and worries that she won't be able to walk without them. Ms Woods said her daughter was a "little angel" with a talkative personality. "Just bring her home please safe and sound".

But the astronomer warned that as use of the nickname "supermoon" grows, so do expectations. It doesn't always correspond with a supermoon (though it did in December 2016). Even more so if it's a supermoon. About twice each year, a full Moon lines up perfectly with the Earth and Sun such that Earth's shadow totally blocks the Sun's light, which would normally reflect off the Moon.

The Moon will lose its brightness and take on an eerie, fainter-than-normal glow from the scant sunlight that makes its way through Earth's atmosphere. This effect is termed as "moon illusion".

Just to be clear, the supermoon is only the moon-there will be no eclipse and no colors.

A supermoon is also believed to have an impact on the Earth's waters. On the three dates marked, step out into the moonset or moonrise and look up for a trilogy of sky watching treats!

According to Metservice, most Kiwis will get a good view of the supermoon on Monday night.

While this supermoon is 2017's one and only, 2018 will start with two in succession. "But it's another great chance to watch the Moon".