Although this is a hypothetical, I think it is nevertheless a legitimate physics problem. I would very much appreciate any answers you can give.
What colour would the sky be, both at daytime and at nighttime, on a small (little over mars-size) moon located 150.3 million km from its yellow dwarf binary star with an unusually high atmospheric temperature and an atmosphere with the following composition: Argon- 80% Oxygen- 12% Nitrogen- 5% Hydrogen- 0.73% Neon- 0.22% Carbon dioxide- 0.05%
There are also thin-spread particles of Zincite floating around in the outer atmosphere due to volcanic eruptions millions of years ago. The sky of this world is high in water-vapour, the average humidity being about 70%. The atmospheric density is 50x that of earth.