Electro astronomical atlas ... with explanatory notes, questions and answers (1874)
Spoor, J. W. (Joseph W.) · Albany, N.Y., Weed, Parsons and Company · leaf 65
id of the days and nightsat this time % A. The days are the shortest and the nights thelongest of any time during the year. Q. As the Earth continues on in her course,what effect is produced % A. The days grow longer and the nights shorteruntil they become equal again, on the 21st ofMarch. Q. How… … Pig. 22.Direction of the Axis of the Zodiacal Light. climate the twilight is of short duration, if weexamine the horizon toward the west a little aftersunset, we may perceive a faint light that rises inthe form of a cone among the starry constella-tions. This is what astronomers call the Zodi-acal…
Astronomy
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