1. Bell work
How do you think Lunar eclipses are different from Solar eclipses?

2. Lunar Eclipses

3. Objective for today.
Describe the causes of lunar and solar eclipses.
SPI I can explain the difference between a solar and a lunar eclipse.

4. Three types of Lunar Eclipses
Penumbral lunar eclipse—the Moon only passes through the penumbra of Earth’s shadow
Partial lunar eclipse—part of the Moon passes through the umbra of Earth’s shadow
Total lunar eclipse—the entire Moon passes through the umbra of Earth’s shadow
Who on Earth will be able to see a lunar eclipse?
Anyone who can see the Moon (anyone who is on the nighttime side of the Earth during the eclipse)

5. When the Earth’s shadow covers the Moon, we have a lunar eclipse
Additional details are at
When the Earth’s shadow covers the Moon, we have a lunar eclipse

6. Objective for today.
Describe the causes of lunar and solar eclipses.
SPI I can explain the difference between a solar and a lunar eclipse.

7. Total Eclipse of the Moon

8. Partial Eclipse of the Moon

9. Partial Eclipse of the Moon

11. Why is the Moon red during an eclipse?
The Earth’s atmosphere filters some sunlight and allows it to reach the Moon’s surface
The blue light is removed—scattered down to make a blue sky over those in daytime
Remaining light is red or orange
Some of this remaining light is bent or refracted so that a small fraction of it reaches the Moon
Exact appearance depends on dust and clouds in the Earth’s atmosphere

12. The Earth’s Umbra Solid Earth blocks direct sunlight.
Earth’s atmosphere bends light.
Earth’s atmosphere scatters blue light.
Only red light fills the umbra.

14. Solar and Lunar Eclipses

15. So when is the next Lunar Eclipse?
Nov. 13th Total Lunar
Nov. 28th penumbral
April 23rd Partial
May 10th Annular
May 25th Penumbral
Oct 10th 2013 –Penumbral
Nov 3rd Hybrid

16. Objective for today.
Describe the causes of lunar and solar eclipses.
SPI I can explain the difference between a solar and a lunar eclipse.