Astro 10-Lecture 1:Introductions
A promise and a warning
Exercises, Quizzes and Exams
What is Astronomy?
A more basic question: What is science?
A gallery of the skies
A review of scientific notation.
How far does light travel in 65.1 millionths of a second?
How long does it take light to get from the Sun to the Earth?
How fast are you moving right now?
A reminder: The metric system
Other units used in Astronomy
The scale of the universe
Relative Size of Earth and Moon
Relative Sizes of Planets
Distances Between Planets
A scale model of history
Email: korpela at ssl.berkeley.edu
Home Page: http://setiathome.ssl.berkeley.edu/~korpela/