Uttmark's guide to the United States local inspectors examination for masters and mates of ocean going steam and sailing ships (1919)
Uttmark, Fritz E · [New York] The Author · leaf 41
The Equinoctial or Celes-tial Equator is the great cir-cle formed by extending theEquator of the earth until itintersects the celestial sphere. E Q E is the Equinoctial.(Fig. 26.) Fig. 26. MABCH gljtfJ … Fig. 27. 38.—*What is the Ecliptic? The Ecliptic is the great circle representing thepath in which the sun, owing to the yearly revolu-tion of the earth, appears to move in the celestialsphere. The plane of the Ecliptic is inclined to thatof the Equinoctial at an angle of 23° 27%. Thisinclination…
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