What is the difference between civil twilight, astronomical twilight, and nautical twilight?
In: 47
There is an actual definition about how many degrees below the horizon the sun is at each level, but practically: Astronomical is when you can just barely see the sky starting to brighten but it’s still pretty much dark on the ground. Nautical is about an hour before sunrise when you can make out mountains, and other big landmarks. Civil is the about half hour before sunrise when you can operate pretty normally.
Latest Answers