 | Devendra Náth Mallik - Astronomy - 1921 - 252 pages
...this case are JS, the declination and 7, tbe Right Ascension (written, for brevity, RA). 39. Defs. The right ascension of a star is the arc of the equator intercepted between the declination circle of the star and the first point of aries, expressed in hours, minutes and seconds,... | |
 | 1882 - 248 pages
...qo-ordinates in this case are JS, the declination and 7j, the Right Ascension (written, RA). 39. Def. The right ascension of a star is the arc of the equator intercepted between the declination circle of the star and the first point of aries, expressed in hours, minutes and seconds... | |
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... equator and the ecliptic, and hence, also, the position of the equinoxes. In expressing the positions of stars, referred to the vernal equinox, at any given instant, the actual position of the equinox at the instant is understood, unless otherwise... 
