Download presentation

Presentation is loading. Please wait.

1
**Motion through the universe**

2
**Rotation Results in day/night.**

24 hour period (measured by Earth’s equator. Center of Earth is larger at center due to this spinning motion.

3
**Precession Change in Earth’s tilt but NOT its 23.5⁰ angle.**

Does NOT effect the seasons, only position of stars

4
Precession Because the plane of Moon’s orbit is tilted away from plane of Earth’s elliptical plane

5
Nutation Wobbling of precession motion (1/2 degree over 18 year period) Due to gravitational pull of the Moon. Can slightly increase or decrease seasonal affects

6
Nutation

7
**Revolution (orbit) Occurs approx. 150 million km away**

Perihelion – closest to the sun (Jan 3rd) Aphelion – farthest away from the sun (July 4th) Does this match what you would have guessed? Why or why not?

8
Seasonal Change More influenced by TILT of Earth’s axis (23.5)

Similar presentations

OK

Earth’s relative motion. 1. Kepler’s 1 st law states that planetary orbits are _________________ shapes? 2. Kepler’s 2 nd law states that 2 equal intervals.

Earth’s relative motion. 1. Kepler’s 1 st law states that planetary orbits are _________________ shapes? 2. Kepler’s 2 nd law states that 2 equal intervals.

© 2017 SlidePlayer.com Inc.

All rights reserved.

Ads by Google

Ppt on history of indian cinema Ppt on different types of forests Doc convert to ppt online form Ppt on business plan of amway Ppt on l&t finance company Ppt on power transmission system in automobile Jit ppt on manufacturing process Ppt on traffic light controller project 64 Ppt on moving coil galvanometer Ppt on cost accounting concepts