Willson, Robert Wheeler, 1853-1922 · Boston, New York Ginn & company · leaf 24
o horizon which will represent the suns path from the point ofsunrise to that of sunset, and passing very nearly through all theobserved points. The bearing of the points of sunrise and sunsetmay then be read off on the horizontal circle. THE MERIDIAN The pole as thus determined marks a very… … using it as a guide, draw the northern quadrant of the verticalcircle through the zenith and the pole. Note the bearing of thisvertical circle. Place the altitude arc at the opposite bearing, anddraw another or southern quadrant of the same great circle till itmeets the south horizon. This great…
Astronomy
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