Bright Moving Orb Has a "String of Pearls" Look

Photo date: July 11, 2016. Photographer: Mark Mahin.

The photo below was taken at Grand Central Terminal in New York. At the top we see an astonishing anomaly.

Below is a closeup of the top of the photo. We see here the "string of pearls" effect I have seen in many other photos, in which we seem to see multiple position states of a moving orb, which together look like pearls on a necklace.

What we see here is certainly not any light on the ceiling of Grand Central Terminal, as there are no lights on its ceiling. It's also not a camera strap (I always photograph with my hand inside the loop of the camera strap,  and camera straps are almost never seen protruding from the top middle of photos). We see here two turns in a short space -- a kind of tight zig-zag motion of a type that neither birds nor insects nor natural particles ever make.