Primarily it is an accurate clock used, with the appropriate tables, to find your longitude.
There are so many people who use a chronometer. People who work in the marine use it for celestial navigation among others.
marine chronometer.
R. T. Gould has written: 'The marine chronometer' -- subject(s): Chronometer 'Oddities' 'Enigmas'
A marine chronometer measures time. It is a very precise instrument because it can also be used to measure the longitude of the ship at sea using the time shown and the angle of the sun.
You would possibly use a chronometer which is an extrememely accurate clock.You would possibly use a chronometer, a very accurate clock.
John Harrison is credited with inventing the first marine chronometer in the mid-18th century. His invention greatly improved navigation at sea by providing an accurate way to determine longitude.
she frequently referred to use a clock as a chronometer Meaning chronometer is a more accurate word for "clock" :)
I really don;t know but other people might use it.
"Chronometer" is a noun.
The device is called a marine chronometer.
A clock/chronometer .
For latitude the sextant, and later for longitude, the marine chronometer.