Buenos Aires, December 4 (NA) – December 2025 witnessed one of the most spectacular astronomical phenomena in recent decades: a Supermoon with an intensity that will not be seen again until 2042. This event coincided with the December full moon, traditionally known as the Cold Moon, which could be seen in all its splendor on Thursday night, as captured by the Argentine News Agency. Specialists anticipate that this Supermoon will reach extraordinary conditions due to the alignment of three key astronomical factors. Three key factors of the extreme Supermoon: Maximum Proximity to Earth (Perigee): The Moon will be at its closest point to our planet in its elliptical orbit, making it appear noticeably larger. Unusual Brightness: Due to this proximity and its full moon phase, the satellite will reflect sunlight with greater intensity than an average full moon. Extreme Position in the 18.6-Year Lunar Cycle: The Supermoon will coincide with a critical phase of the 18.6-year nutation cycle of the lunar orbit, amplifying its perceived effect and brightness. The peak of the Supermoon occurred this Thursday, December 4, 2025, at 23:14 GMT (Coordinated Universal Time), which corresponds to 20:14 in Argentina (Argentina Time). However, the event will offer ample opportunities for observation, as the Moon will appear nearly full and oversized the night before the peak (Wednesday) and will continue to look spectacular until Friday night. Astronomy enthusiasts are advised to take advantage of this period of maximum intensity to enjoy the natural satellite, as its combination of size, brightness, and alignment will not have such a powerful equivalent in the next seventeen years.
