Every few months, we have a special sighting of the Moon where it is not only a full Moon but what is known as a supermoon.
To understand why it is a supermoon, we first have to understand why different parts of the Moon are lit up at other times of the months.
We see different parts of the Moon light up at different times of the month. This is because the Moon is at different positions in its orbit around Earth relative to the Sun.
The Moon sometimes looks bigger when it's closer to the horizon. This is known as the Moon illusion, and it is just a psychological illusion.
If you cover the Moon with your thumb, you'll always be able to block it out, whether it looks small high up in the sky or looks huge closer to the horizon. This illusion is partly due to the brain thinking that objects near the horizon must be closer to us.
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