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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.
