prime vertical
Britishnoun
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
The usual observations made by navigators at sea consist in a meridian observation of the sun for latitude, and a morning and possibly afternoon observation of the sun near the prime vertical for longitude.
The transit instrument is also used in the prime vertical for the determination of latitudes.
From Encyclopaedia Britannica, 11th Edition, Volume 11, Slice 6 "Geodesy" to "Geometry" by Various
The prime vertical circle passes through the east and west points of the horizon.
From Recreations in Astronomy With Directions for Practical Experiments and Telescopic Work by Warren, Henry White
The sun might be observed for this purpose during the summer months, at moments when calculation showed that he should be due east or west, or crossing what is technically the prime vertical.
From The Contemporary Review, Volume 36, September 1879 by Various
The amplitude of a star is its distance from the prime vertical, measured on the horizon, north or south.
From Astronomical Lore in Chaucer by Grimm, Florence M.
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Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
