A F B T C F D T E F F T 2 E 3 B 4 C 5a AU = 150,000,000 km, average distance between the Earth and the Sun. b distance light travels in a year (6 trillion km) c everything - all the matter and energy d The constellations along the ecliptic e A lunar eclipse happens when the nodes of the Moon and the Earth and Sun line up to have the Moon pass through the Earth's shadow. f An object going completely around another one g Practices that sound scientific, but truly do not adhere to the scientific method. h The apparent motion of the planets moving westward across the sky, which is not their typical path. Planets normally seem to move eastward across the sky.