Nautical twilight offers plenty of photo ops, too. Don't think that this is the end of good light though. You can capture a variety of images during civil twilight because the light changes so rapidly. This is when the brightest stars will be visible under normal atmospheric conditions. The evening civil twilight is otherwise known as dusk. Evening civil twilight begins at sunset and ends when the center of the sun reaches 6° below the horizon. It's worth understanding:Ĭivil twilight: Morning civil twilight starts when the geometric center of the sun is 6° below the horizon. Now, here's the (bit scientific and tricky) explanation to wrap your head around. Nautical is when the sailors can no longer rely on the horizon to guide them, and astronomical is for astronomers and adventurous photographers who have the equipment and patience for capturing the moon and the stars. Civil is when people are still out and about enjoying the remaining light. The truth of the matter is, there are three official answers to when twilight occurs. Want the crib sheet? Photographers who have been out there, ready to shoot with their cameras know that the color of the sky changes quite a bit during both dawn and dusk. So, sunrise begs the questions: Does daylight officially begin when the sun starts to rise? Or is it when it's official when the sun is fully above the horizon? By time you finish that cup of Joe, the light has become much brighter. When you go to the kitchen to pour a cup of coffee, the light starts coming in your window. Since the sun is quite large, it naturally takes time to rise above the horizon. Most of us would say that the sun comes up when it crosses the horizon - makes sense, right? Because just before then, it's still dark and when the sun rises, it's light! But, no, scientists show us a different story.
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