Download MoonPhase 1.1 for Mac from our website for free. The actual developer of this free Mac application is Udell Enterprises Inc. MoonPhase for Mac relates to System Tools.
From the developer:
MoonPhase is a dashboard widget that provides a live simulation of the current phase of the moon. In addition to the image, it also shows the length of time until the next (and since the previous) new or full moon.
OS X 10.5 or higher is required.
You may want to check out more Mac applications, such as Deluxe Moon HD - Moon Phase Calendar or Moon Phases - Lunar Clock, which might be similar to MoonPhase.