Definition of Nautical Twilight versus Dawn
Several years ago I came across a soldier's definition of Dawn / Nautical Twilight. It went something like Nautical Twilight (when the sky first started getting light) was when you could see a white horse at 50 meters and Dawn was when you could see a grey horse at 100 meters.
Does anyone know the exact quote and who said it?
Thanks!
Bob
76 Views
Over the heather the wet wind blows,
I've lice in my tunic and a cold in my nose.
The rain comes pattering out of the sky,
I'm a Wall soldier, I don't know why. "Roman Wall Blues' W.H. Auden