You're looking for a detailed feature list of SkyMap Pro 12, a popular planetarium software, and you'd like to know about its free version. Here's what I found:
: If you need a more detailed paper resource for deep-sky observation, the Deep Sky Hunter Star Atlas skymap pro 12 free
Because it was designed for older versions of Windows, you might run into "compatibility" issues on Windows 10 or 11. To get it running: You're looking for a detailed feature list of
Because it is legacy software, it was designed for older versions of Windows. Compatibility 600,000+ star catalog (expandable to over 177 million)
Part of the KDE suite, KStars is highly underrated.
SkyMap Pro 12 is no longer actively developed or sold, and there is no official "free" full version of the software. Historically, SkyMap Pro was a professional-grade planetarium and star-charting application for Windows developed by Chris Marriott. Current Availability and Status
For a "Pro" level experience in modern free apps, look for these specific tools: Star Tracker - Mobile Sky Map - Apps on Google Play