Van Gogh's 'The Starry Night' depicts the sky on July 22, 1889

Which luminant objects are real and which are artistic license?

Would not plate solving with each choice give different results.

https://en.wikipedia.org/wiki/Astrometric_solving

No guessing needed for Escher's stars. He had a love for astronomy that shows up in some of his works.

https://escherinhetpaleis.nl/en/about-escher/escher-today/ye...

https://escherinhetpaleis.nl/en/about-escher/escher-today/th...

I've watched enough History channel to know that any random assorted of objects could be linked to some pattern of planets and stars still this is convincing.