 | James Inman - Nautical astronomy - 1849 - 302 pages
...of a heavenly body is the angle at the pole (measured west or east) between the celestial meridian and the circle of declination passing through the place of the body : thus in fig. Art. 95 ZPX is the hour angle of X, and ZPC is the hour angle of C. (116.) The transit... | |
 | H. W. Jeans - Nautical astronomy - 1853 - 314 pages
...declination. The right ascension of a heavenly body is the arc of the equator, intercepted between the first point of Aries and the circle of declination, passing through the place of the heavenly body in the celestial concave, measuring from the first point of Aries, eastward, from 0°... | |
 | H. W. Jeans - Nautical astronomy - 1858 - 314 pages
...declination. The right ascension of a heavenly body is the arc of the equator, intercepted between the first point of Aries and the circle of declination, passing through the place of the heavenly body in the celestial concave, measuring from the first point of Aries, eastward, from 0°... | |
 | Edward J. Henessey - Astronomy - 1859 - 82 pages
...object is the angle at the pole or arc of the equator, contained between the circle passing through the first point of Aries and the circle of declination passing through the object. Q. What is apparent time ? A. Apparent time is the hour angle or meridian distance of the sun... | |
 | John Bradley Harbord - Astronomy - 1865 - 52 pages
...Oo-Otdinates. (1.) Right Ascension of a Heavenly Body: The arc of the equinoctial intercepted between the first point of Aries and the circle of declination passing through the body, reckoning eastward. (2.) Longitude of a Heavenly Body: The arc of the ecliptic intercepted between... | |
 | William Thomas Brande - Encyclopedias and dictionaries - 1866 - 992 pages
...seasons of the year. Hour Angle of a Heavenly Body. The angle at the pole between the celestial meridian and the circle of declination passing through the place of the body. Hour Circles. [HORARY CIRCLES.] Hours. In Mythology. [HoR.«.] Hours, Canonical. The seven hours of... | |
 | Henry William Jeans - 1868 - 228 pages
...equator. 29. The right ascension of a heavenly body is the arc of the equator, intercepted between the first point of Aries and the circle of declination passing through the place of "the heavenly body in the celestial concave, measuring from the first point of Aries, eastward, from 0°... | |
 | Henry William Jeans - 1868 - 80 pages
...setting at D). The hour angle of a heavenly body is the angle at the pole between the celestial meridian and the circle of declination passing through the place of the body: thus ZPX is the hour angle of X. Tlie altitude of the pole above the horizon is equal to the latitude... | |
 | James Inman - 1872 - 818 pages
...of a heavenly body is the angle at the pole (measured west or east) between the celestial meridian and the circle of declination passing through the place of the body : thus in fig. Art. 95 ZPX is the hour angle of X, and ZPC is the hour angle of C. (116.) The transit... | |
 | Henry William Jeans - 1873 - 292 pages
...setting at D). The hour angle of a heavenly body is the angle at the pole between the celestial meridian and the circle of declination passing through the place of the body ; thus ZPX is the hour angle of X. If L be the place of the sun west of the meridian, its hour angle... | |
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The right ascension of a heavenly body is the arc of the equator, intercepted between the first point of Aries and the circle of declination, passing through the place of the heavenly body... 
