Super Blue Moon: When can you watch the rare celestial event in US?

economictimes.indiatimes.com:

super blue moon." This phenomenon, which combines the characteristics of both a supermoon and a blue moon, is a statistical marvel that aligns two distinct lunar cycles, resulting in a sight that will not be seen again for several years.
The occurrence is not only a visual treat but also a fascinating study of astronomical timing and definitions.

What makes a Super Blue Moon?

A super blue moon occurs when the cycles of a supermoon and a blue moon coincide. According to Noah Petro, project scientist for NASA’s Lunar Reconnaissance Orbiter, this rare alignment is what makes Monday’s full moon so special.

But understanding this celestial event requires a closer look at the definitions of supermoons and blue moons, which, as it turns out, can be quite varied.

Understanding the Supermoon

According to a USA Today report, a supermoon is a full moon that appears larger and brighter than usual because it is at its closest point to Earth in its elliptical orbit. This point, known as perigee, places the moon about 226,000 miles from Earth.
When a full moon occurs at or near this distance, it is classified as a supermoon—a term popularized by astrologer Richard Nolle in 1979. The moon can appear up to 30% brighter and 14% larger than a typical full moon during this event.
However, the exact criteria for what constitutes a supermoon can differ slightly depending on the source.

Defining a Blue Moon

The term «blue moon» is equally complex, with two primary definitions. The type occurring on Monday is a seasonal blue moon,