November is a great month for skygazers, featuring a trio of meteor showers and the return of the northern hemisphere winter constellations. This week, it also features the second of four consecutive supermoons. This month’s supermoon will happen on Nov. 4-5, and November’s beaver moon is special because it’ll be the brightest full moon of 2025.
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In addition to being a supermoon, November’s full moon is known as the beaver moon. There is some debate as to why it was named this way. Some believe that this was the best time of year in the old days to set beaver traps to get pelts for winter clothing. Others believe that it coincides with the busiest part of the year for beavers, who are now stocking their lodges with supplies for the upcoming winter.
The brightest supermoon: When’s the best time to see it?
The moon will reach peak illumination at 8:19 a.m. ET on Nov. 5, making the evening of Nov. 4 and the morning of Nov. 5 the best times to view the moon.
Since moon phases shift slowly, the moon will appear almost full for nearly a week. If you are unable to view the full moon on its best night due to weather or other reasons, you can still see a mostly full moon at any point from Nov. 3 to Nov. 8.
For all of those days, the moon will be measurably brighter in the night sky compared to any other full moon in 2025. The reason for this is because of the moon’s elliptical orbit. Since it’s not a perfect circle, the moon’s 27.3-day journey around the Earth brings it closer to us on some days, a phenomenon known as perigee. If there is a full moon during this time, it’s branded as a «perigean full moon,» which you may know better as a supermoon.
Not all supermoons are equal, and November’s will be a little more special than others. According to The Farmer’s Almanac, the beaver moon will be a scant 221,817 miles away from Earth, making it the closest full moon of the year. That means it’ll be the biggest and brightest of the year.
In practice, the differences are fairly minor and likely won’t be visible to the naked eye when compared side by side to other supermoons. A supermoon is only about 7% larger than a regular full moon. According to NASA, the biggest difference is when comparing a supermoon to a micromoon, where a supermoon will be about 14% larger and 30% brighter. So, if you notice that your backyard patio is lit up more than usual, it’s because of the supermoon.
Also due to the moon’s orbit, November will also bring a micro new moon, which means the moon will be as far away from the Earth as it can get — a phenomenon known as apogee. November’s new moon occurs on Nov. 20, but you won’t be able to see it.
