I think that part of the problem with this thread is that a lot of people seem to not notice that the picture in the original post of this thread is not actually a shot of the TOS transporter room. It’s just a very good 3D rendering done by Donny Versiga. Donny said this in a post over at the TrekBBS:
“I found a high-resolution image of the Pleiades star cluster that, while not exact, closely resembles the poster we see. (If anyone has any info on the real image used in this poster, please let me know!)”
So while Donny’s very realistic-looking artistic 3D software render of the Transporter Room uses a picture of The Pleiades, the actual TOS set itself seems to have a long-exposure, wide-field photograph of the constellation of Orion.