Final Supermoon of 2025, the Cold Moon, Illuminates December Sky
The Cold Moon, the last supermoon and full moon of 2025, will be brightest on Thursday, December 4th, appearing significantly larger and brighter than a typical full moon.
Overview
The final supermoon of 2025, known as the Cold Moon, will reach its peak brightness on Thursday, December 4th, around 6:14 p.m. ET, marking the year's last full moon.
This celestial event is visible throughout the week, appearing full on Wednesday and Friday nights, offering multiple opportunities for skygazers to observe its brilliance.
Supermoons, occurring in groups of four due to the moon's elliptical orbit, appear larger and fuller when the moon reaches its closest point to Earth, known as perigee.
The December Cold Moon will be notably larger and brighter, appearing 14% larger and 33% brighter than a micromoon, and up to 8% larger and 16% brighter than a normal full moon.
This particular full moon holds significance as it is the closest full moon event to the winter solstice, adding to its unique astronomical timing and observation.
Analysis
Center-leaning sources cover this story neutrally, focusing on factual information and practical advice. They avoid loaded language or biased perspectives, instead providing scientific explanations and viewing details. The reporting remains objective, informing readers about the astronomical event without any discernible editorial slant or emotional appeals.
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FAQ
A supermoon occurs when a full moon coincides with the moon reaching its closest point to Earth (perigee), making it appear larger and brighter than a typical full moon. The Cold Moon qualifies as a supermoon because it occurs near perigee, appearing about 14% larger and 33% brighter than a micromoon and brighter than a normal full moon.
The Cold Moon will reach peak fullness on December 4, 2025, at 6:14 p.m. ET. It will be visible from December 3 to December 5, appearing full throughout this period, and will be highest in the night sky among full moons in 2025, particularly noticeable near the horizon at moonrise in the eastern constellation Taurus.
The December Cold Moon is significant because it is the closest full moon event to the winter solstice in the Northern Hemisphere, meaning it rises higher in the night sky as the sun reaches its lowest point during the day, providing a unique astronomical and seasonal context for observation.
The Cold Moon appears about 14% larger and 33% brighter than a micromoon, and about 8% larger and 16% brighter than a normal full moon, making it notably more impressive in size and luminosity for observers.
For optimal viewing, it is best to watch the Cold Moon near the horizon where objects like buildings or trees can provide scale. Using binoculars or a small telescope can enhance the experience. Observers are encouraged to find dark areas away from bright lights and allow their eyes to adjust to the night.
History
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