Herschel, John F. W. (John Frederick William), Sir, 1792-1871 · London : Longman, Rees Orme · leaf 262
e stationary points of Mercury atfrom 15° to 20° of elongation from the sun, accord-ing to circumstances; and of Venus, at an elongationnever varying much from 29°. The former con-tinues to retrograde during about 22 days; the latter,about 42. (407.) ^Ve have said that some of the planets exhi-bit… … mere inspection of the figure annexed, to show, that to aspectator situated on the earth E, an inferior planet,illuminated by the sun, and therefore bright on theside next to him, and dark on that turned from him,will appear full at the superior conjunction A; gibbous(i. e. more than half full,…
Astronomy
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