Full Breakdown
Arizona Ranks Second for Viewing December's Cold Moon Supermoon
11/29/2025, 3:17:48 AM
Overview of the Cold Moon Supermoon
On December 4, 2025, the Cold Moon Supermoon will rise, marking the final supermoon of the year. This astronomical event occurs when the full moon coincides with its closest approach to Earth, known as perigee, making it appear larger and brighter than usual. According to the Natural History Museum, supermoons can appear about 14% larger and shine approximately 30% brighter than a typical full moon. The Cold Moon, also referred to as the Long Night Moon, is traditionally associated with the onset of winter and the longest nights of the year.
Arizona's Prime Viewing Conditions
A recent study by Action Network ranks Arizona as the second-best state in the U.S. for viewing the Cold Moon, following New Mexico. The Supermoon Visibility Index evaluated factors such as sky clarity, humidity, elevation, and darkness. Arizona's unique desert atmosphere, characterized by dry air, frequent clear nights, low humidity, and extensive dark-sky zones, provides optimal conditions for skywatchers. An Action Network researcher noted, “Arizona’s desert atmosphere gives the Cold Moon incredible clarity,” making it an ideal location for observing this celestial event.
Best Locations for Viewing
Several iconic landscapes in Arizona offer excellent vantage points for viewing the Cold Moon. Recommended locations include:
- Sedona & Oak Creek Canyon: Known for its stunning red rock silhouettes.
- Flagstaff Dark Sky Region: High elevation with minimal light pollution.
- Saguaro National Park: Features the iconic saguaro cacti as a foreground.
- The Superstition Mountains: Offers wide, dramatic desert horizons.
- Outskirts of Phoenix or Tucson: Dark skies just beyond city lights.
The peak illumination of the Cold Moon is expected at approximately 6:14 PM EST, with the best viewing occurring around moonrise when the moon appears largest and most colorful.
Official Statements & Responses
Astronomy experts emphasize that while no special equipment is necessary to view the Cold Moon, using a telescope or binoculars can enhance the experience. Chris Palma, an astronomy professor at Penn State University, suggests that stargazers should seek open horizons away from city lights for the best visibility.
Criticism & Opposition
While the Cold Moon is anticipated to be a spectacular sight, some critics argue that urban light pollution can significantly diminish the viewing experience. Observers in metropolitan areas may find it challenging to see the moon clearly, prompting calls for increased awareness about light pollution's impact on astronomical events.
What's Next
Following the Cold Moon, the first full moon of 2026, known as the Wolf Moon, will rise on January 3, 2026. This moon is named for the howling of wolves during winter months and will also be a supermoon.
Verbatim Quotes
- “Arizona’s desert atmosphere gives the Cold Moon incredible clarity,” — Action Network Researcher
- “‘Supermoon’ isn’t an official astronomical term, but typically it’s used to describe a full moon that comes within at least 90 percent of perigee,” — NASA
- “In a past interview with USA Today Network, Tim Brothers, Massachusetts Institute of Technology technical Instructor and observatory manager, said with any case of stargazing, it's much better if you're using a good telescope or a pair of binoculars.” — Tim Brothers, MIT Technical Instructor and Observatory Manager
