Sights
Until the age of satellite navigation ships usually took sights at dawn, during the forenoon, at noon (meridian transit of the Sun) and dusk. The morning and evening sights were taken during twilight while the horizon was visible and the stars, planets and/or moon were visible, at least through the telescope of a sextant. Two observations are always required to give a position accurate to within a mile under favourable conditions. Three are always sufficient.
Read more about this topic: Intercept Method
Famous quotes containing the word sights:
“Television hangs on the questionable theory that whatever happens anywhere should be sensed everywhere. If everyone is going to be able to see everything, in the long run all sights may lose whatever rarity value they once possessed, and it may well turn out that people, being able to see and hear practically everything, will be specially interested in almost nothing.”
—E.B. (Elwyn Brooks)
“We can’t always have the beautiful aspect of things. Let us make the most of our sights that are beautiful and let the others go”
—Mark Twain [Samuel Langhorne Clemens] (1835–1910)
“O Lord, methought what pain it was to drown,
What dreadful noise of waters in my ears!
What sights of ugly death within my eyes!”
—William Shakespeare (1564–1616)