Why does the shape of Saturn's ring change?
- Let's explain the mystery in the planet by using Cabri & Cabri3D-
Chieko FUKUDA
Hakuoh University
Kyoko KAKIHANA
Tsukuba Gakuin University
Japan
Abstract
From the example of Saturn's rings, it is shown that an
ellipse is a projection of inclinational circle. Next, we explain the
way of measuring this inclination by projection geometry. Finally, we
measure major axis and minor axis of Saturn’s ring in photograph for five
years, and calculate the variation of Saturn’s ring inclination seen from
the earth.
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