Our website provides a free download of jskycat 3.0 for Mac. Jskycat for Mac is included in Developer Tools. This free software for Mac OS X was originally produced by Allan Brighton.
From the developer:
jskycat is a desktop app that allows you to use the JSky package. The JSky project aims to build a collection of reusable Java components for use in astronomy. It contains java classes for displaying astronomical images, searching astronomical catalogs and plotting catalog symbols on images.
You may want to check out more software for Mac, such as ReloadEditor, joomla- or QuickPerlTester, which might be similar to jskycat.