Mysterious Blue Orb Aligns Twice on the Same Line

Photo date: October 9, 2015. Photographer: Mark Mahin.

Below is a composite photo combining two photos taken in Grand Central Terminal in New York.  The photos show the same huge window, and in both photos we see a large blue orb. The orb is not in the exact same place in each photo, but in both photos the orb is exactly aligned on the same line (the right edge of the window).  This seems to be another example of the uncanny tendency of orbs to appear in nonrandom positions, something abundantly shown in my 117 posts labeled "orb selective positioning."

These photos were taken about five minutes apart, as you can verify by looking at the time on the clocks. It is known that indoor airborne dust drifts around at about 2 to 3 miles an hour. So the skeptic has a kind of "Hobson's choice" if he wishes to explain away this pair of photos. The skeptic might maintain that both photos show the same floating dust particle that happened to have barely moved at all in 5 minutes (which contradicts what we know about the drifting of airborne particles). Or the skeptic can maintain that coincidentally there happened to have appeared two identical-looking dust particles (both blue-colored) that both aligned on the edge of the same window (another coincidence). What are the odds of that -- maybe a billion to one?