May 26, 2012
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What explains the phenomenon of the dancing stars?
Posted on Friday in dancing with the stars | by PeterLast week I was in the desert of Sahara. During the night I saw 2 stars that where moving fast, but it wasn't in a trajectory (like shooting stars). It was more like a dancing movement, going in all directions and coming back to their place. I never heard of that phenomenon. Can it be an optic illusion? (Other people where seeing the same thing).
Thanks for the answer and sorry for my bad English 
This is caused by thermic convection of the air. In the deserts you normally have high differences in temperature between day and night, so hot air is rising rapidly while cold air is moving downwards after sunset. This different densities in the air makes the light bend and the stars seems as if they are dancing, just as if you were looking through an irregular glass.
It's a bad night for astronomers.
This is caused by thermic convection of the air. In the deserts you normally have high differences in temperature between day and night, so hot air is rising rapidly while cold air is moving downwards after sunset. This different densities in the air makes the light bend and the stars seems as if they are dancing, just as if you were looking through an irregular glass.
It's a bad night for astronomers.
References :
This is because of the atmosphere. The atmosphere bends the light so you see them dancing around. The twinkling of stars is really what you were talking about, except that you had some really big twinklings.
References :