The December sky is about to welcome an interesting astronomical event when the last supermoon of 2025 appears. This is the last chance of the year for moon-watching enthusiasts to see the Earth's natural satellite in its most brilliant state.
According to scientists, the Moon's orbit around the Earth is not a perfect circle but a elip, causing the distance between these two objects to constantly change.
When the full moon moves to the closest point to Earth in its orbit ( near land), the supermoon phenomenon will occur. According to data from NASA, during these times, the Moon can look 14% larger and 30% brighter than when it is at its farthest point.
Super moons often do not appear alone but take place in clusters several times a year. The event taking place on December 4 will be the 3rd and also the end of the consecutive supermoon series in 2025.


To admire this beauty, observers do not need any specialized equipment such as lunar glasses or focuses. Just a clear sky and few clouds, the naked eye can fully enjoy this moment. However, experts note that the change in the actual size of the Moon is sometimes quite subtle and difficult to distinguish if only viewed transitologically.
An interesting phenomenon that comes with it is lunar hallucinations. Regardless of whether it is a supermoon or not, when the Moon is close to the horizon (when it is new to growth or about to sink), it often looks much larger than when it is high. This is a strange visual procedure that scientists have not yet had a completely unified explanation for.
Astronomer William Alston from the University of Brightfordshire said that when this hallucination phenomenon is combined with a supermoon, the visual effect will become slightly more impressive.
In addition, due to stronger attraction as the Moon is near, tides may rise higher than normal, but this difference is often not too significant to cause major impacts.