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Basic Concepts

  1. Astronomical Coordinates
  2. Equinoxes
  3. Date and Time
  4. The Seasons
  5. Phases and Tides of the Moon
  6. Solar and Lunar Eclipses
  7. Motion of the Planets
  8. Orbital Mechanics
  9. Star Names and Catalogs
  10. Properties of the Stars
  11. Star Formation and Evolution
  12. How Stars Die
  13. Double, Multiple, and Binary Stars
  14. Variable Stars, Novae, and Supernovae
  15. Deep Sky Objects
  16. Star Clusters
  17. Nebulae
  18. The Milky Way
  19. Galaxies