1 - Where Is M13? 2.0.1 "Where is M13?" is a revolutionary new astronomy application that helps you visualize the 3-D locations and physical properties of common deep sky objects. This perspective is rarely discussed in the astronomy books and software products on the market, which focus mainly on apparent data such as an object's look, visual magnitude, apparent size, right ascension and declination. "Where is M13?" aims to address this important lack. License: Freeware OS: Mac OS X 10.3 Size: 1.4 MB