using System;

                    using System.Collections.Generic;

public class Program

{

          interface CelestialBody

      {

         string getName();

         string getType();

         List<string> getOrbitals();

         void addOrbitals(string Orbital);

      }

      enum CelestialBodyType { Star, Planet, Satellite }

      class Star : CelestialBody

      {

         private string _Name;

         private List<string> Planets;

         private readonly string Type = "Star";

         public string getType() { return Type; } // Planet, Sun, Satellite

         public string Name

         {

            set

            {

               _Name = value;

            }

​

            get

            {

               return _Name;

            }

​

         }

         public string getName() { return _Name; }

         public List<string> getOrbitals() { return Planets; }

         public void addOrbitals(string NewPlanet) { Planets.Add(NewPlanet); }

​

​

​

         public Star() : this("No Name") // Sets the default value of Name

         {

         }

​

​

         public Star(string Name) : this(Name, CelestialBodyType.Star) // Set the default value of Classification

         {

         }

         //Designated Constructor

         public Star(string Name, CelestialBodyType Star)

         {

            this.Name = Name;

         }

​

      }

​

    public static void Main()

    {

      Star star = new Star("The Sun");

​

      Console.Write(star.getName() + star.getType());

    }

}