A supermoon occurs when a full moon coincides with the point in orbit in which the moon is closest to Earth.
The moon will be roughly 10,000 miles closer to Earth on Sunday evening, creating our first and only Supermoon of the year.
It's not a guarantee that the moon will always be at its closest when it's a full moon; it was actually far closer on May 25, Space.com noted, but it was a new moon, not a full one. Hence, for those in the Northern hemisphere, it is a cold supermoon.
An airplane flies past the moon above Stamford, Conn. on Sunday, Nov. 13, 2016.More news: Former Trump Adviser Flynn Pleads Guilty To Lying To FBI
The day after the moon will be at its closest to earth in the month.
"For this year's final supermoon, the perigee distance will be approximately 222,135 miles in the early morning hours of December 4 (in the United States)", says Nichols. This makes the full moon appear even larger and luminous due to its increased proximity to the planet.
If you're unable to see the supermoon, you won't have to wait long for another opportunity.
The first - and final - supermoon of 2017 will begin around 8 p.m. Sunday and reach its perigee at 3:45 a.m. Monday.More news: Missing Florida teen found safe in NY , officials say
The best time to see it will be as the moon rises just after sunset, according to National Geographic.
Those who miss out to view the supermoon in person can catch up with the sighting as the astronomical spectacle will be live streamed by robotic telescope service (Slooh).
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.More news: GST made doing business easier, increased market size for traders: Jaitley
"The supermoon gets headlines because the moon's a little bigger and a little brighter, but people get frustrated that they can't always tell the difference".