Olmsted, Denison, 1791-1859. [from old catalog] · New York, R. B. Collins · leaf 192
f the eccentricity and inclination of theorbit of Mercury ? How does the apparent diameter of Mer-cury vary ? How are his changes of seasons ? * The new planets of course excepted. MERCURY AND VENUS. 177 parent diameter, which is only 5 in the apogee, but12 in the perigee. The inclination of his… … and the planet is represented in various positions in itsrevolutions around the sun. When at A, in the supe-rior conjunction, the whole enlightened disk is turnedtowards us; at D, in the inferior conjunction, the en-lightened side is turned entirely from us; and at thequadratures B and C half the…
Astronomy
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