The excellent Linux planetarium package KStars now has a native MacOS port. It's got a capture package built-in called Ekos, that supports capture, guiding, focusing, and plate solving, assuming you've got the right hardware. It's not as easy to install or configure as some other packages, but if you read the docs, it's not too bad. The weather here has been crap since I got it installed, but if the clouds ever blow out, I'll put up a review.
you can download it here, if you want to give it a try:
http://indilib.org/download/osx.html
