When using the visualisation tools, we suggest that you maximise your HSpot window to fill your computer screen. The displayed image space can then be maximised by clicking on the maximise icon in the upper right hand corner of the image frame. The iconify icon will iconify the image and place the icon at the bottom of the HSpot window. To zoom the image within the window, use the magnifying glass icons in the upper left corner of the HSpot window. See Figure 20.3, “Track of Comet 2P/Encke”.