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Lunar Eclipses

What are Lunar Eclipses? How can we predict them?
by

Claire King

on 22 October 2012

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Transcript of Lunar Eclipses

photo credit Nasa / Goddard Space Flight Center / Reto Stöckli By: Celine Harris and Claire King Lunar Eclipses When Do Lunar Elcipses Occur? Lunar Eclipses occur at a full moon, when Earth is directly between the moon and the sun.

During a lunar eclipse, Earth blocks sunlight from reaching the moon.

The moon is then in Earth's shadow and looks dim from the Earth.

Lunar eclipses occur only when there is a full moon because the moon is closest to Earth's Shadow at the time. There are three types
of
Lunar Eclipses
Partial, Penumbral, and Total!!! Partial Lunar Eclipses For most Lunar Eclipses, earth, the moon, and the sun are not quite in line, and only a Partial Lunar Eclipse occurs.

A Partial Lunar Eclipse when the moon passes partly into Earth's umbra*.

The edge of the umbra will appear blurry, and you will be able to watch it pass across the moon for about 2 or 3 hours!

* Umbra- the darkest part of the Earth's shadow Total Lunar Eclipses When? On November 13th, a Total Lunar Eclipse will occur!!!

On November 28th, a Penumbral Lunar Eclipse will occur!!! A Total lunar eclipses is when the moon is in Earth's umbra.
Unlike a total solar eclipses, a total lunar eclipses can be seen anywhere on Earth where the moon is visible.

Therefore, it is more likely to see a total Lunar eclipses than a Total solar eclipse. Trivia Question What is an umbra? Answer: The darkest part of Earth's shadow Question A lunar eclipse occurs at a ______________ moon. Answer Full Question A lunar eclipse occurs when __________ is directly between the _______ and the __________. Answer A lunar eclipse occurs when Earth is directly between the Moon and the Sun. Question A partial lunar eclipses occur when the moon passes partly into the _________ of Earth's shadow. Answer Umbra Question How long can you watch the umbra pass across the moon during a partial lunar eclipse? Answer two or three hours Question Penumbral Lunar Eclipse A penumbral lunar eclipse occurs when the Earth moves between the Sun and Moon but the three celestial bodies do not form a perfectly straight line.

The Moon then travels through the outer part of the Earth's shadow (penumbra).

This means that all of the Moon's visible surface still receives some direct sunlight - but the Earth obscures parts of the Sun, as seen from the Moon. A Penumbral Lunar Eclipse occurs when the moon passes through the ___________ part of Earth's shadow, know as the ________________. Answer A Penumbral Lunar Eclipse occurs when the moon passes through the outer part of Earth's shadow, know as the Penumbra. During a ___________ Lunar Eclipse, all of the Moon's visible surface still receives some direct sunlight. Question Answer Penumbral Works Cited http://eclipse.gsfc.nasa.gov/lunar.html

http://www.timeanddate.com/eclipse/lunar-eclipse-june-2012.html

http://astro.ukho.gov.uk/eclipse/1332009/

Padilla, Michael J., Martha Cyr, and Ioannis Miaoulis. Prentice Hall science explorer: astronomy. Needham, Mass.: Pearson Prentice Hall, 2005. Print.
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