No, the moon was not exceptionally blue at that time. The word “Blue Moon” refers to either two full moons happening in the same calendar month (as in this case) or the third full moon in a season with four full moons. A supermoon, on the other hand, is a full moon that happens when the moon’s orbit brings it closer to Earth, resulting in a significantly bigger moon.
Supermoons occur because the moon’s orbit around Earth is not entirely round but rather oval or elliptical. As a result, the moon’s orbit has moments when it is farther away—at maximum distance—and times when it is closer—or farthest from the Earth.
