Recently my SkySafari 6 Pro quits immediately upon startup on my OS X (iMac).
Specifically, I double-click the SS6 app...the app screen flashes up momentarily...and then the app closes immediately...and an error report generation window opens. I've submitted several of these error reports to Apple.
Up until earlier this week, the application was running fine...and there have been no updates to the OS or the application that I'm aware of...
I've tried deleting and reinstalling the application twice...but the issue remains.