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Farmers Almanac
The 2014 Farmers Almanac
Farmers' Almanac

Full SHADOW Moon?

Full SHADOW Moon?

This is the week of shadows! First, the all-important Groundhog Day shadow — and then a penumbral eclipse of the Full Moon on February 9. While eclipses are exciting to view, this eclipse really won’t be on the “must-see” list. A penumbral eclipse happens when the Moon moves into the lighter, outer (penumbral) shadow of the Earth. This type of eclipse is hard to spot unless the Moon moves more than 70% into the penumbral shadow.

On Monday, February 9, 2009, February’s Full Snow Moon will pass through the southern portion of the Earth’s shadow, crossing deep into the relatively faint penumbra. At maximum, 92.4% of the Moon’s diameter will be inside the penumbra, resulting in a light shading of the Moon’s upper portion. Alaska, Hawaii, Australia, New Zealand, and eastern Asia will be in the best position to see this underwhelming celestial event.

Learn why February’s Full Moon is referred to as the Full Snow Moon.

Watch and learn about the Full Snow Moon.

If you notice a hole in the upper left-hand corner of your Farmers' Almanac, don't return it to the store! That hole isn't a defect; it's a part of history. Starting with the first edition of the Farmers' Almanac in 1818, readers used to nail holes into the corners to hang it up in their homes, barns, and outhouses (to provide both reading material and toilet paper). In 1910, the Almanac's publishers began pre-drilling holes in the corners to make it even easier for readers to keep all of that invaluable information (and paper) handy.