A new manual of the elements of astronomy, descriptive and mathematical .. (1868)
Kiddle, Henry, 1824-1891 · New York, Ivison, Phinney, Blakeman & co.; Chicago, S.C. Griggs & co. · leaf 56
Qxtestions.—66. What are the poles ? a. What are the celestial poles ? 67. What isthe equator? 68. What are meridian circles? Meridians? a.. Their relation to theequator ? What is a secondary ? 69. What is latitude ? Longitude ? … LATITUDE AND LONGITUDE. 51 70. Small circles parallel to the equa-tor are called Parallels or Latitude. 71. Latitude is reckoned on a meridian,from the equator to the poles; longitudeis reckoned from the prime meridianround to the opposite meridian. a. Distance from any great circle must bereckoned…
Astronomy
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