I put a sun passing hundreds of G years. I expect that it will become a red giant and it would dead remaining planetary nebula and white dwarf much before that time. But it just red giant until that time.
Even Spica didn't changed it's blue color during several tenth of G years.
when you can add realistic stellar evolution?
Also I hope to adding evaporation of gas-type planet like Jupiter when it's temperature is high like hundreds or thousands of C degree