Surprised I had to go this far down to find someone asking. Yeah you nailed it that's exactly what causes it. Unclear whether the same phenomenon can happen with a sunset, but my assumption is that it would be the reverse effect-- i.e. the sun would start to look more like an arch with the points touching the horizon.
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u/Nayzo 1d ago
Is this caused by a partial solar eclipse at dawn? Does this mean you can also have a Devil's sunset?