Lesson 1
Observational Astronomy
Lesson 1: Quick Tour
(Links below require shockwave)
Relative Earth Moon Distance
Sun Relative to Moon's orbit
Orbits in the Solar System
Comparitive Planetology
Relative Distance to Nearest Star
Parallax of Nearby Star
Parallax as a Function of Distance
Relation between Distance, Speed and Time
H-R Diagram
Distance to Andromeda Galaxy