 | James Smith - Industrial arts - 1815 - 684 pages
...and the oblique ascension of the body, is called the ascensional difference. The latitude of a star is its distance from the ecliptic, measured on a circle of latitude, which is a circle perpendicular to the ecliptic, and is either north or south, as the star is situated... | |
 | William Chauvenet - 1864 - 720 pages
...latitude. Parallels of latitude are small circles parallel to the ecliptic. The latitude of a poiut of the sphere is its distance from the ecliptic measured...equinox. The longitude is reckoned eastward from 0° to 3GO°. The longitude is sometimes expressed in signs, degrees, &c., a sign being equal to 30°, or... | |
 | Elias Loomis - Astronomy - 1870 - 274 pages
...poles of the ecliptic, and therefore cuts this circle at right angles. The latitude of a heavenly body is its distance from the ecliptic measured on a circle of latitude. It may be north or south, and is counted from zero to 90 degrees. The longitude of a heavenly body... | |
 | William Chauvenet - Astronomical instruments - 1874 - 724 pages
...and the secondaries by which points of the sphere are referred to it are called circles of latitude. Parallels of latitude are small circles parallel to...equinox. The longitude is reckoned eastward from 0° to 3GO°. The longitude is sometimes expressed in signs, degrees, &c., a sign being equal to 30°, or... | |
 | William Chauvenet - Astronomical instruments - 1891 - 716 pages
...and the secondaries by which points of the sphere are referred to it are called circles of latitude. Parallels of latitude are small circles parallel to...to 360°. The longitude is sometimes expressed in sif/ii*, degrees, &c., a sign being equal to 30°, or one-twelfth of the ecliptic. These co-ordinates... | |
 | Sir Richard Gregory - Geomorphology - 1893 - 320 pages
...called circles of celestial latitude. The latitude of a star is the arc intercepted between the star and the ecliptic, measured on a circle of latitude, and its longitude is the angle between the point where this circle cuts the ecliptic and the first point of Aries. It will be... | |
 | Elias Loomis - 1897 - 264 pages
...of the ecliptic, and therefore cuts this circle at right ansrles. OO The latitude of a heavenly body is its distance from the ecliptic measured on a circle of latitude. It may be north or south, and is counted from zero to 90 degrees. The longitude of a heavenly body... | |
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In this system the ecliptic is taken as the primitive circle, and the secondaries by which points of the sphere are referred to it are called circles of latitude. Parallels of latitude are small circles parallel to the ecliptic. The latitude of a point... 