Planetary Motion Early Astronomy Challenge! Planetary Motion Early Astronomy

1. Who am I? COPERNICUS PTOLEMY TYCHO BRAHE NEWTON GALILEO KEPLER GEOCENTRIC MODEL HELIOCENTRIC MODEL GREAT OBSERVATIONS ELLIPTICAL ORBITS FIRST TELESCOPE GRAVITY PTOLEMY COPERNICUS TYCHO BRAHE GALILEO NEWTON KEPLER

2. How are the following measured? One year Ans: One revolution of Earth One month Ans: One revolution of the moon One day Ans: One rotation of the Earth

3. What are the following dates? Summer Solstice June 21 Winter Solstice December 21 The Equinoxes September 21 and March 21

4. Label the diagram below.

5. What happens to day length as we move through summer? The number of daylight hours DECREASES until the winter solstice.

6. Discuss life at the North Pole in December. The Sun does not set in the summer and therefore does not rise in the winter.

7. What hemisphere has more extreme climate conditions in each season? Probably the northern hemisphere because there is more ocean in the southern hemisphere to insulate and moderate temperatures.

8. A kick-off time of 5pm in Seattle is a TV time of ___ here in Virginia. 8pm; Eastern places start the day earlier.

9. How can you truly celebrate your birthday on two consecutive days? Cross the International Date Line from Asia to North America.