- Description: The Full Moon widget is for those astronomy fans who especially love the moon. It's patterned much like a lunar calendar and displays the phases of the moon during specific dates of the month. Depending on the day, the phase of the moon will be shown in a larger image next to the calendar itself. You'll always be informed as to what the moon will look like during the evening. This widget is available for Windows 7 users and it won't take up space on your desktop since it's nicely sized and can be put into one corner of your screen. For added flare to your desktop, turn your desktop background into a wallpaper of space and this widget will certainly be in its rightful place.