The heavens above: a popular handbook of astronomy (1882)
Gillet, J. A. (Joseph Anthony), 1837-1908 · New York, Chicago, Potter, Ainsworth, & Co. · leaf 35
dyis its distance from the nearerpole. Declination and polardistance are measured onhour circles, and for the sameheavenly body they are com-plements of each other. The light ascension of aheavenly body is its distanceeastward from the first pointof Aries, measured from theequinoctial colure. It is… … ASTRONOMY. 17 celestial sphere, it may have any value from 0° up to 360°.Right ascension corresponds to longitude on the earth, anddeclination to latitude. 15. The Meridian Circle. — The right ascension anddeclination of a heavenly body are ascertained by means ofan instrument called the meridian…
Astronomy
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