Third Quarter Moon Phase Observed on November 12, 2025
On November 12, 2025, the Moon entered its Third Quarter phase, with 47% illumination, offering clear views of prominent lunar features.
On November 12, 2025, the Moon entered its Third Quarter phase, with 47% of its surface illuminated. This phase occurs when the Moon is at a right angle to the Earth-Sun line, resulting in half of the Moon's visible surface being lit.
During this phase, observers can view prominent lunar features. With the naked eye, the Mare Imbrium and the Kepler and Tycho Craters are visible. Using binoculars, the Grimaldi Basin, Mare Humorum, and Clavius Crater can be seen. A telescope reveals additional details such as Reiner Gamma, Apollo 14 landing site, and Rima Ariadaeus.
The next full Moon is expected on December 4, 2025. The Moon's phases follow a 29.5-day lunar cycle, transitioning through eight main phases: New Moon, Waxing Crescent, First Quarter, Waxing Gibbous, Full Moon, Waning Gibbous, Third Quarter, and Waning Crescent.