Wiki Word: Umbra
PRONOUNCIATION KEY: OOm~brr~uhh
 

 

 

 

 

Definition: The Umbra is the shadow of when the moon passes between the Earth and the Sun casting a shadow on the Earth or when the Earth passes in between the sun and the moon causing a shadow on the moon. (Solar and Lunar Eclipses)

 

 An easy way to remember the word Umbra, is think of umbrella. When you are holding an umbrella, it casts a shadow below you. Just think that the umbrella is the shadow when the moon (person holding umbrella) passes between the Earth (sky or object above you) and the Sun (ground below you). Also, they both start with UMBR.

 

The Umbra is the very center of a shadow, therefore, there has to be more parts to it. There is the penumbra and the Antumbra.  You can find information about antumbra here>>>    http://facetroughgemstones.com/wikipedia/pe/Penumbra.html 

 

 

 

 

 

This term applies to our class and to be successfull in science because i fyou are learning about shadows in science class, it will help you or if you are working for NASA or someone, this would be a word to know about.

 

 

"Umbra." Wikipedia. 24 April 2008. Wikipedia. 9 May 2008 <http://en.wikipedia.org/wiki/Umbra>.

 

Miles, Kathy. "What is a Lunar Eclipse." Starryskies.com. 1995-2008. starryskies. <http://starryskies.com/The_sky/events/lunar-2003/eclipse1.html>.

 

Total Lunar Eclipse to Occur on the Night of October 27. 22 October 2004 <http://images.google.com/imgres?imgurl=http://media.skyandtelescope.com

/images/Umbra_Explained_m.jpg&imgrefurl=http://www.skyandtelescope.com

/about/pressreleases/3309646.html%3F

showAll%3Dy%26c%3Dy&h=295&w=428&sz=14&hl=en&start=8&um=1&tbnid=gba7fvdkzmwCwM:&tbnh=87&tbnw=126&prev=/images%3Fq%3Dthe%2Bumbra

%26um%3D1%26hl%3Den%26safe%3Dactive>.

 

 

 "Volcano Erupts in Chile." Badastronomy.com. 09 May 2008. Bad Astronomy. 9 May 2008 <http://www.badastronomy.com/pix/umbra.jpg>.

 

 

 

Orginal Author: 

 allyssa maessss! haha like seventh duh!
 Allyssa M.  7

 

Status:

 Date Status                  
 4-29  started
 5-9  comlpeted
 5-17  mrs F, i cant figure out how to make the page fitcuz the owrds are runnong into that bar thing so i dont know.

KEY:

  • Started = This wiki has been started, but is not yet finished. Original Author has 2 weeks to complete or page becomes fair game for someone else to adopt.
  • Completed = This wiki is ready to be assessed for a grade.
  • Graded = Mrs. Flynt has graded this wiki. Original Author has 2 weeks to improve and then page opens for peer edits.
  • Open for Editing = The author has has relinquished control. This page is now open for peer editing and changes to improve its usefulness.

 

Peer Editing:

Name (First, Last Init.) Period Date Description of what was changed
       
       
       
       
 


Page Information

  • 6 months ago [history]
  • View page source
  • You're not logged in
  • No tags yet learn more

Wiki Information
Update to PBwiki 2.0

An entirely new PBwiki experience, including folders and easier editing.

Convert Now for Free | Learn more