private void reposition()
        {
            if (_inputPanel == null)
            {
                return;
            }

            _panelRect = _inputPanel.GetComponent <RectTransform>();

            Vector2 cam = PlanetariumCamera.Camera.WorldToScreenPoint(_buttonRect.position);

            cam.x -= (Screen.width / 2);
            cam.y -= (Screen.height / 2);

            cam.x -= 275;
            cam.y -= 50;

            _panelRect.position = cam;

            clampToScreen(_panelRect);
        }