A super moon occurs when the full moon is closest to Earth. It looks larger and more beautiful than other full moons, and we’re getting a special one because it’s also the snow moon, or the second full moon of winter.
This Tuesday night will bring the "super snow moon." Due to a number of nuances in the interactions between the sun, Earth and moon, the distance between us and and each supermoon varies a bit. It just so happens that this week's perigee will be about 362 miles (583 kilometers) closer to us than last month's supermoon, according to NASA.
If you really want to be wowed, your best bet is to check out the full moon when it rises in the east as the sun is setting in the west. This is when it will appear to be biggest, although this is mostly due to an optical illusion.
This happens when the moon is close to the horizon and there are objects such as trees or buildings within our line of sight, NASA astronomer Mitzi Adams explains. "Because these relatively close objects are in front of the moon, our brain is tricked into thinking the moon is much closer to the objects that are in our line of sight," Adams says.