Debug.Log("Радиус планеты " + heightPlayer);

public class PlanetInfo : MonoBehaviour {

   //Радиус объекта, ближе нельзя приближаться
   public float Radius = 50f;
}

//Радиус объекта, ближе нельзя приближаться
  public float Radius = 15f;

if (Input.GetMouseButton(0))
             {
                  ray = UnityEngine.Camera.mainCamera.ScreenPointToRay(Input.mousePosition);
                  if (Physics.Raycast(ray, out hit, 10000.0f))
                  {
     target = hit.transform.position; //point;
     heightPlayer = hit.collider.transform.GetComponents<PlanetInfo>().Radius;
     }
    }

heightPlayer = hit.collider.transform.GetComponents<PlanetInfo>().Radius;

Assets/Scripts/MovePlayer.cs(46,99): error CS1061: Type `PlanetInfo[]' does not contain a definition for `Radius' and no extension method `Radius' of type `PlanetInfo[]' could be found (are you missing a using directive or an assembly reference?)