Mars' Moons(15 slides) $30

Three slides show the orbits of Phobos and Deimos relative to Mars and the physical characteristics of each moon. Both moons are compared to the asteroid Gaspra. Eleven slides show both moons from full disk to close-up in high resolution.

Copyright 1999 by Pan Terra Inc., PO Box 556, Hill City, SD, USA 57745.

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