Uncle Fred
22nd Apr 2016, 00:10
It is either somewhere in the cobwebs of the mind or in one of the reference books groaning the office shelves, but could someone please remind me of not only the definition/difference among Astronomical twilight, Nautical twilight, and Civil twilight...but also, and equally important, why we have those distinctions?
I was brought up short when a non-pilot friend asked me about these and I had to admit that I could not remember. Yes, I know tucking into Wikipedia would be a good first cut at it but I also know that tech forum members will undoubtedly bring some keen insight (ha ha) to the answer.
I was brought up short when a non-pilot friend asked me about these and I had to admit that I could not remember. Yes, I know tucking into Wikipedia would be a good first cut at it but I also know that tech forum members will undoubtedly bring some keen insight (ha ha) to the answer.