The objects track with the sun and when they appear together they are all in alignment. This is in fact lens flare! Check it out!
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The type of lens flare created has to do with the type of lens and position of the camera. Check out the gallery section of this wiki

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But if you really want to believe its a second sun or something it's up to you. I'm not trying to hate on your thread I'm just saying hey there is some pretty big evidence it's lens flare.