Oblique ascension
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(Astron.) | an arc of the equator, intercepted between the first point of Aries and that point of the equator which rises together with a star, in an oblique sphere; or the arc of the equator intercepted between the first point of Aries and that point of the equator that comes to the horizon with a star. It is little used in modern astronomy. |
See also: Ascension
Webster's Revised Unabridged Dictionary, published 1913 by G. & C. Merriam Co.