Ever wonder where the globular star cluster M13 is in relation to our Sun within the Milky Way? Think Astronomy will help you put it and many other objects in perspective with its new program Where is M13? ($19). The software will enhance your observing experience by allowing you to get an intuitive sense of the location, size, luminosity, and distance of many objects observable within our galaxy. The program is compatible with Windows XP, 2000, and NT, as well as with Mac OS X, Linux, and other Unix platforms. Requires Java 1.4 or higher.
Contact: Think Astronomy, 6604 Lakewood Point Cove, Austin, TX 78750; 512-345-8942; www.thinkastronomy.com
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