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English
Noun
time sight (countable and uncountable, plural time sights)
- An observation by sextant of the altitude of a celestial body in order to determine the time and hence the longitude.
- A set of observations in order to determine the time that is usually conducted with a transit instrument.
2007, John Karl, Celestial Navigation in the GPS Age, page 71:The GHA of the sun at the time of your LAN is your longitude. (Of course, GHAs greater than 180° mean the longitude is east and it would be written as 360° - GHA.) Some navigators call this a time sight.