public static void MainMenuComp(string LetterString, SolarSystemModel ChosenSolarSystem)
        {
            switch (LetterString.ToLower())
            {
            case "planeten":
                PlanetRenderer.PlanetPageRendering(ChosenSolarSystem);
                break;

            case "q":
                Environment.Exit(0);
                break;

            case "quit":
                Environment.Exit(0);
                break;

            default:
                Console.WriteLine("The chosen command was not recognized! please try again.");
                break;
            }
        }