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The Penumbral Lunar Eclipse of 2006
Unlike a total lunar eclipse — when the moon passes centrally through the Earth’s dark shadow, or umbra, and the moon turns deep red in color — a penumbral eclipse merely grazes the umbra’s dusky outer fringes. The result is a slight brownish shading on the moon’s edge closest to the umbra. This sequence captured by Imelda Joson and Edwin Aguirre from Rockport, Massachusetts, shows the deep penumbral eclipse of March 14, 2006. This event was followed two weeks later by a 4-minute-long total eclipse of the sun, which Imelda and Edwin observed from Salloum, Egypt, near the border with Libya. See: Hunting Eclipses: A Photo Expedition.