Lessons in astronomy including uranography. A brief intoductory course without mathematics (1896)
Young, Charles A. (Charles Augustus), 1834-1908 · Boston, London, Ginn and company · leaf 190
attains its maximum brightness when its appar-ent area is at a maximum, about thirty-six days before andafter inferior conjunction. According to Zollner, the albedoof the planet is 0.50; i.e., it reflects about half the lightwhich falls upon it, the reflecting power being about three 247]… … Fig. 49. — Telescopic Appearances of Venus. the same. This high albedo probably indicates a surfacemostly covered with clouds, since few rocks or soils couldmatch its brightness. Like Mercury, Mars, and the moon, thedisc of Venus is brightest at the edge, — in contrast with theappearance of Jupiter…
Astronomy
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