The luster will be a bit “off” on Dec. 21st, the first day of northern winter, when the full Moon passes almost dead-center through Earth’s shadow. For 72 minutes of eerie totality, an amber light will play across the snows of North America, throwing landscapes into an unusual state of ruddy shadow.
Lunar Eclipse Tonight + Winter Solstice—First in 372 Years
National Geographic (20 Dec 10)
Total Lunar Eclipse of December 21
NASA_Eclipses Durning 2010