Willson, Robert Wheeler, 1853-1922 · Boston, New York Ginn & company · leaf 71
nce it follows thevernal equinox by that amount,will have passed the meridian by2 55™; and its hour-angle will be2h 55ra rj^tj^g ^^.^ ^£ ^j^g equator between the meridian and the ver-nal equinox may be considered asmade up of two parts: the rightascension of the star, which is measured by the are… … Fig. 37 THE COMPLETE SPHERE OF THE HEAVENS 59 indeed, of any heavenly body, we may make the following generalstatement: The right ascension of any body plus its hour-angle atany instant will be equal to the sidereal time at that instant; or,as it is sometimes written : E.A. + H.A. = Sidereal Time.…
Astronomy
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