Astronomy

Ascensional Difference

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The difference between the Right Ascension of any body and its Oblique Ascension: used chiefly as expressing the difference in time between the rising or setting of a celestial body, and six o’clock; or, six hours from the meridianal passage. To find this, add the log. tangent of the declination of the planet, to the log. tangent of the latitude of the place. The sum will be the log. sine of the Ascensional Difference. This added to the planet’s Right Ascension, when in South declination (or subtracted, when in North declination), gives the Oblique Ascension of the planet. The reverse process yields the Oblique Descension.

Angle

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Any one of the four cardinal points in a Figure, or map, of the heavens; variously referring to the Zenith, or South Vertical; the Nadir, or North Vertical; and the East and West horizons: the cusps of the Tenth, Fourth, First and Seventh Houses, or the Medium Coeli, Immum Coeli, Oriens (Ascendant) and Occidens (Descendant) of a Solar or, indeed, of any Celestial Figure. Usually identified as the Southern, Northern, Eatern and Western angles. They are the most powerful and important arcs in Astrology. Planets therein become immensely potent for good or ill, according to the nature of the planets and their aspects. The term may refer to the shape and position of the House as placed on the square maps employed by the ancient astrologers. v. Map of the Heavens. Many depose that the Ascendant is the most powerful angle in any Figure, though Ptolemy gives preference to the Midheaven, or Zenith, since the celestial bodies are uniformly more potent in their effects at their meridian altitude than when rising.

Antiscion

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As modernly used in the so-called Uranian Astrology, it is the reflex position of a planet’s birth position, in that degree on the opposite side of the Cancer-Capricorn axis, of which either 0º Cancer or 0º Capricorn is the midpoint. For example, the antiscion of a planet at 14º Capricorn is at 16º Sagittarius, which point becomes effective when occupied by another planet, or one in transit or by direction. As first used by Ptolemy the term is applied to two planets which have the same declination on the same side of the equator. One in the same declination on the opposite side was termed a contra antiscion. v. Parallel.