Elementary astronomy; a beginner's text-book (1899)
Holden, Edward Singleton, 1846-1914 · New York, H. Holt and company · leaf 100
ORDINATES. 79 angle of a star is the angular distance between the celes-tial meridian of the observer and the hour-circle passingthrough that star. The honr-angle is counted from themeridian towards the west from 0° to 360° (or from 0h to24L). The hour-angle of a star at A at the instant chosenfor… … Fig 45 bis. equator between the celestial meridian of the observer andi he foot of the hour-circle through the star. The arc CBis the measure of the angle ZPB. Knowing the two co-ordinates PA and CB the place of the star A is describedand determined. North-polar-distance and Right-ascension.—The…
Astronomy
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