1. Eclipses By: Hiromi and Michelle

2. Eclipse Types Solar Lunar

3. Solar Definition- The obscuration of the light of the moon by the intervention of the earth between it and the sun Records of Solar eclipse have been around since ancient times Magnitude- fraction of the sun covered by the moon

4. Types of Solar Eclipse PartialHybrid Total Annular

5. Partial (Penumbra) The sun and the moon are not exactly in line causing the moon only partially blocks the sun The umbra passes above the Earth’s Polar region, but never crosses Earth’s surface

6. Annular (Antumbra) Moon and Sun are in line Moon is smaller than the sun so it isn’t completely covered Sun shines behind the moon in a bright ring (annulus) Diamond ring effect- see a shinning halo (Corona), which is usually not visible

7. Total (Umbra) The moon completely covers the sun causing a darkness in the sky Earth intersects the umbra portion of the moon’s shadow Last as long as 7 minutes 31 seconds

8. Hybrid “oddball” A solar eclipse that shifts between a annular and a total eclipse Changes depending on where you are on Earth Extremely rare

9. Observing a Partial Solar Eclipse Pinhole camera Solar filter Welders’ goggles Exposed/developed black and white film

10. Occurrences Between 2-5 times a year (total solar eclipses can only happen 2 times a year) Last total solar eclipse was on July 11, 2010 Next is said to be November 13, 2012

11. Video http://www.youtube.com/watch?v=xwGs8_ot T64 http://www.youtube.com/watch?v=xwGs8_ot T64

12. LUNAR ECLIPSE

13. What is Lunar Eclipse? When does it happen? When moon passes through the Earth’s shadow. Happens only when the moon is on the far side of the Earth from the sun. Can be seen from the entire Hemisphere.

14. Positions of the Moon During a Lunar eclipse Far away from the sun Behind the Earth’s shadow caused by the sun Usual Duration (completion) of the Eclipse: Usually last over 1 hour; least duration time 30 minutes.

15. Types of Lunar Eclipse A) Penumbral Lunar Eclipse B) Partial Lunar Eclipse C) Total Lunar Eclipse

16. Penumbral Lunar Eclipse

17. Partial Lunar Eclipse

18. Total Lunar Eclipse

19. WHY RED? It is caused by the sunlight passing through the Earth’s hemisphere. The remaining light coming out of the hemisphere is redish-orange.

20. Some Facts….. Lunar Eclipse occurs 0 to 3 times each year There are 7,718 lunar eclipses recorded throughout history This year lunar eclipse is scheduled to June 15 and December 10. Sample Video of Lunar Eclipse from Dec 21, 2010; this lasted almost 4 hours and 30 mins: http://www.youtube.com/watch?v=mhZWIgUUPZ8

21. Works Cited Espenak, Fred, and Mark Littmann. "Observing Solar Eclipses Safely." MrEclipse Index. 1999. Web. 19 Jan. 2011.. Espenak, Fred. "Solar Eclipses for Beginners." MrEclipse Index. 2009. Web. 19 Jan. 2011.. "Solar Eclipse." Wikipedia, the Free Encyclopedia. 14 Jan. 2011. Web. 19 Jan. 2011.. "Lunar Eclipses for Beginners." MrEclipse Index. Web. 21 Jan. 2011. http://mreclipse.com/Special/LEprimer.html.http://mreclipse.com/Special/LEprimer.html "Eclipse." Wikipedia, the Free Encyclopedia. Web. 21 Jan. 2011..