Wow this looks amazing! Can't wait! I like the sunspots a lot!
I have a question.
will the solar flares affect the star or anything orbiting the star?
And does it age? you know you could have separate clock for stars to age without affecting anything orbiting it!
Other than technical details involving the magnetic fields, solar wind, unless its a very massive star like Eta Carinae (which I hear nearly rips itself apart with massive CMEs), I doubt it'll affect the star in a way that matters to the simulation.
For flares affecting planets, well, theres the aurorae....
For aging the star, you can't have it age without it affecting things in orbit. It'll change in luminosity as it ages, thus affecting the temperatures of planets. Although given that the timescales involved are long (billions of years for sunlike stars, millions for massive ones) and we can only make the simulation go so fast with planets around it, I don't know....