Lunar Distance (navigation)
In celestial navigation, lunar distance is the angle between the Moon and another celestial body. A navigator can use a lunar distance (also called a lunar) and a nautical almanac to calculate Greenwich time. The navigator can then determine longitude without a marine chronometer.
Read more about Lunar Distance (navigation): The Reason For Measuring Lunar Distances, Errors, USS Peacock, In Literature
Famous quotes containing the words lunar and/or distance:
“A bird half wakened in the lunar noon
Sang halfway through its little inborn tune.”
—Robert Frost (1874–1963)
“The distance that the dead have gone
Does not at first appear—
Their coming back seems possible
For many an ardent year.”
—Emily Dickinson (1830–1886)