wait(10) for m = 0, 60, 0.001 do game.Lighting.Sky.MoonAngularSize = m end
I don't know how to do that.
You should do:
local RunService = game:GetService("RunService")
at the top of your script, and add to the loop:
for m = 0, 60, 0.001 do game.Lighting.Sky.MoonAngularSize = m RunService.RenderStepped:Wait() end