AF on Jupiter, seriously?
It's easily visible as the brightest "star" in the sky. AF easily using live view
yes, it is. Even without LV.
I've never tried it with the phase detection basically for the reason that the camera is mounted on a tripod and its fairly easy with LV. I engage in Astrophotography only when I have ample time and BTW, Jupiter's not going anywhere in a hurry . One other reason I prefer LV is because I don't need to use MLU shooting in LV.