Wednesday, January 30, 2008

Dancin' in the Moonlight!


Path of the Moon through Earth's umbral and penumbral shadows
during the Total Lunar Eclipse of February 20, 2008.
(Eastern Standard Time)


From the NASA site:

A total eclipse of the Moon occurs during the night of Wednesday, February 20/21, 2008. The entire event is visible from South America and most of North America as well as Western Europe, Africa, and western Asia. During a total lunar eclipse, the Moon's disk can take on a dramatically colorful appearance from bright orange to blood red to dark brown and (rarely) very dark gray.

An eclipse of the Moon can only take place at Full Moon, and only if the Moon passes through some portion of Earth's shadow. The shadow is actually composed of two cone-shaped parts, one nested inside the other. The outer shadow or penumbra is a zone where Earth blocks some (but not all) of the Sun's rays. In contrast, the inner shadow or umbra is a region where Earth blocks all direct sunlight from reaching the Moon.

If only part of the Moon passes through the umbra, a partial eclipse is seen. However, if the entire Moon passes through the umbral shadow, then a total eclipse of the Moon occurs. For more information on how, what, why, where and when of lunar eclipses, see the special web page lunar eclipses for beginners.

Read the rest of the info at the NASA site

1 comment:

jugglingpaynes said...

I need to mark that on my calendar! I hope it's a clear night!

I really appreciate all the information you put on your blog. I always find something interesting to share with my children. And thanks for visiting my blog!

Peace and Laughter,
Cristina