North sections of the Road Map
Thus THE ROAD MAP OF THE STARS will prove at once a key to the location and grouping of celestial objects, and an interesting introduction to the basic facts of the venerable system of the stars.In North sections of the Road Map show the direction of motion of "circum polar " stars; in East, the rising of stars; South, their course across the meridian; West, their setting. The arrow just over Polaris shows the direction in which the pole of the earth's axis describes a circle around the ecliptic pole. (See POLE, North.)
Axis. The straight line on which a body re volves. It points to the pole of the orbit of revolution.
CELESTIAL SPHERE. The apparent surface of the heavens which everywhere seems part of a sphere.
COLURES. Two hour-circles intersecting at right angles at the poles of the equator. The Equi noctial colure coincides with hour-circles XXIV (stars of Pisces, Map I, South), and XII (stars of Virgo, Map 7, South). The Solstitial colure coincides with hour-circles VI (between the stars of Gemini and Taurus, Map 4, South), and XVIII (between the stars of Sagittarius and Scorpio, Map 10, South).
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