model://sun model://ground_plane true 0 0 0.5 0 0 0 0.0 0.5 2 0 0.5 0 0 0 0.2 0.5 4 0 0.5 0 0 0 0.4 0.5 6 0 0.5 0 0 0 0.8 0.5 8 0 0.5 0 0 0 0.8 0.5 10 0 0.5 0 0 0 1.0 0.5 5.0 -10.0 1.5 0.0 0.0 1.57079 orbit