Hope you enjoyed the Supermoon since we won’t see it again until December 6, 2052. I promise to buy anyone who shows up a beer but full disclosure, I might just be dead by then 🙂 No being morbid, just saying that this is probably the last one in my lifetime.
“Supermoon” is a term that has really caught on in the past few years, but astronomers have been calling it an “perigee full moon” for much longer, or “perigee-syzygy of the Earth-Moon-Sun system” if you really want to get technical.
A supermoon is the coincidence of a full moon or a new moon with the closest approach the Moon makes to the Earth on its elliptical orbit, resulting in the largest apparent size of the lunar disk as seen from Earth. The technical name is the perigee-syzygy of the Earth-Moon-Sun system. The term “supermoon” is not astronomical, but originated in modern astrology.
The term “supermoon” was first used by an astrologer, Richard Nolle, more than three decades ago, according to EarthSky.
According to NASA, at perigee the moon is about 31,000 miles closer to Earth than at apogee, which is is farthest point in its orbit: “That distance equates to more than once around the circumference of Earth. Its looming proximity makes the moon appear 14 percent larger and 30 percent brighter in the sky than an apogee full moon.”