SunlitEarth is a widget that displays the position of the sun and the portion of the earth that's in daylight (see Figure 9). This is a pretty cool little widget, even though I have no good use for it. I've seen sunlight maps before, but this is the first one I've ever seen with the sun in it.
Figure 9 The SunlitEarth widget.
There are no configuration options. The view automatically updates once a minute.
SunlitEarth is by the Texas A&M Astronomical Observatory.