1. There are about 6000 visible stars in the night sky. They are FAR. The light from our closest star, Proxima Centauri left 4 years ago !

3. 28.2 Essential Question: What is evidence that the Earth revolves around the Sun? 1. Galileo 2. Copernicus 3. Kepler 4. 5.

4. Aristotelian view has the earth and sky on fixed spheres The ancients imagined that the Earth was surrounded by a canopy of stars

5. Summer ConstellationsWinter Constellation Find constellations that ONLY appear in the Summer sky. Find ones that ONLY appear in the Winter sky

6. Different Zodiac constellations appear in the sky at different times during the year

7. As we revolve around the Sun, the night time Earth faces a different direction in the sky at different month of the year, so we see different constellations.

8. Celestial Portraits Human brains naturally create patterns. Human brains naturally create patterns. What do you see when you look at the clouds? What do you see when you look at the clouds? The ancients did the same when they looked up at the sky. The ancients did the same when they looked up at the sky.

9. Do you see a pattern in these stars?

10. Orion What constellation is this?? Orion is only visible in the fall & winter

11. Tell a story Orion was a mythical hero and hunter, in his amorous pursuit of the Pleiades ( 7 daughters of the giant Atlas), the Gods placed them in the sky. And Orion chases after them in the sky for all eternity never to catch them. Orion was a mythical hero and hunter, in his amorous pursuit of the Pleiades ( 7 daughters of the giant Atlas), the Gods placed them in the sky. And Orion chases after them in the sky for all eternity never to catch them. The Gods put Taurus the Bull to protect them the daughters. The Gods put Taurus the Bull to protect them the daughters. Orion has his trusty dogs Canis Major and Canis Minor to help him. Orion has his trusty dogs Canis Major and Canis Minor to help him.

13. A B http://highered.mheducation.com/olcweb/cgi/pluginpop.cgi?it=swf::800::600::/sites/dl/free/007 299181x/78778/Parallax_Nav.swf::Stellar Parallax Interactive http://highered.mheducation.com/sites/007299181x/student_view0/interactives.html#

14. Parallax- the apparent shift in position of an object when the OBSERVER is moving