Astrophysics

E.1.1
Planets orbit the sun, moons orbit planets.
Planets in our solar system
(remember this from the video, where the camera goes from the sun past all the planets and that Neptune is last)
Mercury
Venus
Earth
Mars
Jupiter
Saturn
Uranus
Neptune

Pluto is not a planet, it is a proto planet (dwarf planet)

E.1.2

A stellar cluster is made from a group of stars brought together by gravity.
Constellations are patterns are stars brought identified using imagination

E.1.3

E.1.4

E 1.5

Stars appear to move across the night sky, this is the relative motion between the earth and stellar objects.