Shell-Shaped Orbs Look Like That Recent Siberian UFO

Recently a photographer took a video showing a strange shell-shaped or cone-shaped UFO photographed in Siberia. The news coverage quoted an astronomer saying he was sure the object was just a star shown close up -- a very absurd statement, since stars never look like the dimpled, shell-shaped object shown in the video, no matter how close you zoom your camera.

I have no idea what the object in that Siberian video was, but I do know that it looks rather like some shell-shaped orbs I have photographed. Below are two examples from my photographic backlog.  The bluer one is from December 17, 2015, and the other one is from November 26, 2015 (both were photographed in Grand Central Terminal in New York). The two orbs are pretty much "spitting images" of each other, except that one has a brighter color.