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Usually it's the color. Sunrise colors are cooler and paler, but I also saw many really pale sunsets.
According to the astrophysicist Neil Degrasse Tyson, director of the Hayden Planetarium in New York generally, when at least a part of the sun is visible, you can tell by the angle - because of Earth's tilt, the sun doesn't rise or set along a vertical line, but at an angle. When viewed from all latitudes north of the Tropic of Cancer , the sun always rises at an angle up and to the right, and sets and an angle down and to the right.
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Wrong. The angle mentioned in that text you copied refers to the motion of the sun over time when you don't know which way you're facing (as in a movie). It's impossible to discern that angle from a single photograph (unless you did some weird time-exposure which would look like crap, but might leave a trail.)
The real answer is that unless there's some indication of which way the camera was facing when it took the picture, from say landmarks or geocoding, it's impossible to tell. You cannot go by color because sunsets and sunrises vary drastically in color from one day to the next far more than any generalizations that you could make between them, not to mention differences in cameras, processing, display, etc.
Quote:
Originally Posted by bumpus7
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I posted this question on this thread back on 2/18/12
and no one replied until Yesterday at 2:46 am.
I would also say your latitude and time of year plays in this Sun Rise ~ Sun Set equation..
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OH WELL.
