code: def __init__(self, m, x, v, gravSys, shape):
      Turtle.__init__(self, shape=shape)
      self.penup()
      self.m = m
      self.setpos(x)
      self.v = v
      gravSys.planets.append(self)
      self.gravSys = gravSys
      self.resizemode("user")
      self.pendown()
  
file_path: cpython/Lib/turtledemo/planet_and_moon.py
imports: from turtle import Shape, Turtle, mainloop, Vec2D
label_desc: Use image node_id 1 to create a new Star object from inherited base classes: Turtle with example: obj = Star(m, x, v, gravSys, shape)