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)
““I see nobody on the road,” said Alice.
“I only wish I had such eyes,” the King remarked in a fretful tone. “To be able to see Nobody! And at that distance too! Why, it’s as much as I can do to see real people, by this light!””
—Lewis Carroll [Charles Lutwidge Dodgson] (1832–1898)