A high-school astronomy: in which the descriptive, physical, and practical are combined .. (1859)
Mattison, Hiram, 1811-1868 · New York, Mason brothers · leaf 73
larly, and exactly on the equator. On i— the 23d of December the shadow would be thrown C B A northward to A, or 23° 28—just as far as the sun has declined south. At 12 oclock, on the 20th of March, and the 23d of September, therewould be no shadow; and on the 21st of June, it would extend… … 3. This cut shows how the student may measure the suns declination wherever hemay be located north of the equator. The shadows are such as are cast by objectsduring the year, about 45° north of the equator. On the 23d of December, when thesun has his greatest declination, the shadow of the…
Astronomy
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