Observing a lunar eclipse is very easy. All you have to do is look up in the cloud less sky, find the moon and look. I have observed many and they are cool. This will be the first time in hundreds of years that a lunar eclipse will fall on the winter solstice. From AOL News: Geoff Chester of the U.S. Naval Observatory inspected a list of eclipses going back 2000 years for NASA. "Since Year 1, I can only find one previous instance of an eclipse matching the same calendar date as the solstice, and that is 1638 DEC 21," Chester said, according to NASA. "Fortunately we won't have to wait 372 years for the next one ... that will be on 2094 DEC 21."
From SpaceWeather.com: LUNAR ECLIPSE: For the first time in many years, northern winter is beginning with a total lunar eclipse. On Dec. 21, 2010, the date of the northern winter solstice, the full Moon will pass through Earth's shadow, turning the lunar orb a delightful shade of coppery-red. Sky watchers in North America are favored with an overhead view as the eclipse unfolds on Tuesday morning between 02:41 am and 03:53 am EST. Visit http://spaceweather.com for full coverage of the event including live webcasts, observing tips, and a look at the surprising connection between lunar eclipses and Earth's climate.
From Nasa's Press Release:Solstice Lunar Eclipse
Dec. 17, 2010: Everyone knows that "the moon on the breast of new-fallen snow gives the luster of mid-day to objects below."
That is, except during a lunar eclipse.
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.
The eclipse begins on Tuesday morning, Dec. 21st, at 1:33 am EST (Monday, Dec. 20th, at 10:33 pm PST). At that time, Earth's shadow will appear as a dark-red bite at the edge of the lunar disk. It takes about an hour for the "bite" to expand and swallow the entire Moon. Totality commences at 02:41 am EST (11:41 pm PST) and lasts for 72 minutes.
If you're planning to dash out for only one quick look - it is December, after all - choose this moment: 03:17 am EST (17 minutes past midnight PST). That's when the Moon will be in deepest shadow, displaying the most fantastic shades of coppery red.
Why red?
A quick trip to the Moon provides the answer: Imagine yourself standing on a dusty lunar plain looking up at the sky. Overhead hangs Earth, nightside down, completely hiding the sun behind it. The eclipse is underway. You might expect Earth seen in this way to be utterly dark, but it's not. The rim of the planet is on fire! As you scan your eye around Earth's circumference, you're seeing every sunrise and every sunset in the world, all of them, all at once. This incredible light beams into the heart of Earth's shadow, filling it with a coppery glow and transforming the Moon into a great red orb.
Back on Earth, the shadowed Moon paints newly fallen snow with unfamiliar colors--not much luster, but lots of beauty.
Enjoy the show.
Author: Dr. Tony Phillips | Credit: Science@NASA
