American practical navigator: an epitome of navigation and nautical astronomy (1914)
Bowditch, Nathaniel, 1773-1838, United States. Navy Dept. Bureau of Equipment, Logan, George Wood, 1868-1915 · Washington, Govt. Print. Off. · leaf 71
64 PILOTING. … A condition that limits all of these is that angles should be large—at least aslarge as 30°—excepting in the case where two objects are in range or nearly so, andthen the other angle must be of good size. When possible, near objects should beused rather than distant ones. The navigator should not…
Navigation · Nautical astronomy
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