A high-school astronomy: in which the descriptive, physical, and practical are combined .. (1853)
Mattison, Hiram, 1811-1868 · New York, F. J. Huntingdon [etc.] · leaf 30
26 ASTRONOMY. … The Axis of the Heavens is the axis of the earth pro-duced or extended both ways to the concave surface ofthe heavens. The EaUdtOT of the equator of the heayens, oe equinoctial. heavens, or Equinoc-tial, is the plane ofthe Earths equatorextended to the starryheavens. Declination is dis-stance…
Astronomy
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