The 6.8.2 version of SkySafari Plus for Mac was available to download on the developer's website when we last checked. We cannot confirm if there is a free download of this app available. The most popular versions of the tool are 1.8, 1.7 and 1.0.
This Mac application was originally developed by Southern Stars. The software lies within Education Tools, more precisely Science. Please check the Mac app with an antivirus before launch as it is downloaded from the developer's website, and we cannot ensure that it is safe.
From the developer:
Spaceflight has never been so easy! With SkySafari 3 Plus, you can follow events like eclipses and transits in Earth's sky - or from anywhere else in the galaxy!
Like our SkySafari iPhone apps, SkySafari for Mac OS X comes in three versions. This version - SkySafari Plus - is the intermediate one.
You may want to check out more software for Mac, such as SkySafari, which might be related to SkySafari Plus.