Wednesday is the day: it's full moon. That's why our Earth's companion is shining brightly in the sky these days. But it is also special in its own way.

The November full moon is the largest this year and is therefore a so-called "supermoon." The moon is currently almost 18,600 miles closer to Earth than average. However, the difference in size compared to a normal full moon is hardly noticeable. At best, it appears brighter than usual.

The weather for observing the moon will be perfect in many parts of the southern and central U.S. However, rain will streak across the West and Northeast, blocking the moons brilliance.