SP-4212
On Mars: Exploration of the Red Planet. 1958-1978

Fig. 3. The orbits of Earth and Mars, showing the times of opposition and the separation at opposition. Samuel Glasstone, The Book of Mars, NASA SP-179, 1968.

Fig. 3. The orbits of Earth and Mars, showing the times of opposition and the separation at opposition. Samuel Glasstone, The Book of Mars, NASA SP-179, 1968.


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