ascensional

1. (astronomy) Pertaining to right ascension and/or oblique ascension.Examples: "The ascensional difference is the difference in degrees between the right ascension and either the oblique ascension, or oblique descension; and with respect to the sun, the ascensional difference is the time that he rises before six o'clock in summer, or sets before six in winter."; "Calculating by spherical trigonometry, and assuming the same obliquity, I obtain 3 dundas and 40 pulas for the ascensional arc, giving a difference in time of 3 pulas, or about one of our minutes; an error so small, that even were the Indian astronomer aware of its existence he would disregard it, satisfied that the practical purposes which his labours subserve, are, notwithstanding, carried out with sufficient accuracy."; "The former is the ascensional equivalent of the first sign; subtracting it from the latter gives that of the second sign, which is 1795', and subtracting 3465' from a quadrant, 5400', gives the equivalent of the third sign which is 1935'—all as stated in the text."not-comparable