The term "supermoon" is used to describe a Full Moon that occurs when the Moon is closest to Earth in its orbit. During a supermoon, the Moon appears slightly larger and brighter than usual. However, the difference in size and brightness between a supermoon and a regular Full Moon is relatively small and may not be noticeable to the naked eye.

The term "super duper moon" is not a scientific term and does not have a specific definition. It is sometimes used to describe a supermoon that is particularly close to Earth, but there is no standard definition for how close the Moon must be for it to be considered a super duper moon.

In general, supermoons are not particularly significant astronomical events. They are simply a result of the Moon's orbit around Earth, and they occur several times each year.