1. Capture Theory

4. Triton’s orbit is ~156⁰ off of Neptune’s equator

5. Phoebe’s orbit is ~151⁰ from Saturn’s equator

6. The Moon’s orbit is ~30⁰ off of Earth’s equator

7. Fission Theory

9. Composition of the Earth & Moon
Element
Earth
Moon
Iron
34.6%
3.5%
Oxygen
29.5%
60.0%
Silicon
15.2%
16.5%
Magnesium
12.7%
Titanium
0.05%
1.0%

10. Binary Theory

11. The Moon’s orbit is ~30⁰ off of Earth’s equator

12. Pluto
Charon
Typically in a binary formation, the two objects orbit in the same plane without much inclination).

14. Composition of the Earth & Moon
Element
Earth
Moon
Iron
34.6%
3.5%
Oxygen
29.5%
60.0%
Silicon
15.2%
16.5%
Magnesium
12.7%
Titanium
0.05%
1.0%

15. Giant Impact Theory

18. Composition of Earth’s Layers