Solar and Lunar Eclipses What is an eclipse? • An eclipse occurs any time something passes in front of the Sun, blocking its light. This can be the Earth or the Moon. Is there more than 1 kind of eclipse? • There are two types of eclipse, lunar and solar eclipses. Lunar Eclipses • The Earth moves between the Sun and the Moon and cast a shadow on the moon, blocking the Sun’s light, and causing the moon to glow red. This happens when the moon is a full moon. • Solar Eclipse- When the Moon casts a shadow on the Earth, causing the sun to go dark. The shadow is only on part of the earth. • This happens only when the moon is a New Moon Solar Eclipse How often do Eclipses Happen? • That depends!! Lunar Eclipses happen more often than Solar Eclipses. • Why? Well everyone who is experiencing nighttime during a lunar eclipse can see it. • But you have to be at the exact spot on Earth to see a Solar Eclipse. • The spot on Earth is so small, that the same place only sees a Solar Eclipse every 350 years!! Upcoming Lunar Eclipses • June 15, 2011, Total lunar eclipse (not visible in US_ • Dec 10, 2011, Total lunar eclipse (mostly not visible in US) • June 4, 2012, Partial eclipse • Nov. 28, 2012, Penumbral eclipse • Apr. 25, 2013, Partial eclipse (not visible in US) • May 25, 2013, Penumbral eclipse • Oct. 18, 2013, Penumbral eclipse • Apr 15, 2014, TOTAL ECLIPSE –visible here 7 Upcoming Solar Eclipses • Nov. 25, 2011, partial solar eclipse—not visible in USA • May 20, 2012 (annular)—VISIBLE In USA • Nov. 13, 2012, total eclipse—not visible in USA • May 10, 2013, annular eclipse—not visible in USA • Next Total Solar Eclipse in continental USA— August 21, 2017 8 Why Don’t We See Eclipses More Often? • Well, lunar eclipses don’t happen everyday because the Moon’s orbit is tilted. So, during most months, the Moon is above or below the Earth. What’s the difference between solar and lunar eclipses? Earth goes moon goes into moon’s into Earth’s shadow shadow Poster • Like before there will be three sections • 1. Using a Sun, Earth, and Moon draw the phases of the moon in a correct order and labeled. • Using a Sun, Earth, and Moon