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This image, from the Lunar and Planetary Laboratory, illustrates the approximate relative sizes of the Sun and planets and their relative locations. Although distance is not to scale, viewers can see that the small...
Students measure sunspot speeds and shapes across the solar disk to determine whether the spots are on the Sun or are planets revolving around it (Galileo's dilemma). Includes links to hands-on demonstration of concepts.
This unit introduces students to some general concepts of astronomy. Topics include geocentric versus heliocentric theories of the solar system and how they explain the sun's movements, sidereal days versus solar days,...
This collection of lecture notes discusses the fundamentals of astronomy. The lecture notes review the topics of celestial mechanics, light, matter, planets, telescopes, the sun, stellar astronomy, stellar evolution,...
These interactive astronomy java applets were created for astronomy students at the University of British Columbia. They cover topics dealing with the solar system and demonstrate the phases of the inner planets,...
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