Lockyer, Norman, Sir, 1836-1920 · London : Macmillan and Co. · leaf 222
ogether than will the con-junctions which happen elsewhere. Similarly, if we supposethe aphelion of the Earth to coincide with the perihelionof a superior planet, as in the case of Mars, it will beobvious that the opposition which happens in that partof the orbit will be the most favourable for… … The tigure also shows us that when Mars is observedat the solstice indicated, we see the southern hemisphereof the planet better than the northern one ; while at those iS8 ASTRONOMY. oppositions which occur when the planet is at the oppositesolstice, the northern hemisphere is most visible. But…
Astronomy · Solar system
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