My first thought was a light airplane. Cessna variety.  Then I remembered I didn’t hear the sound of a propeller engine, much less anything resembling an airplane.  Given the hour of the photograph, it is probably safe to assume a Mack truck could have driven by and there is a plausible chance I would not have registered its existence. So call it what you will.  I’d bet a months salary that one guesses the least threatening of their reality.  Their reality whose pulse is connected to the ZOMG I’m afraid button. 

Enjoy.

Daily perseid stars UFO