Guy's you don't even need to attempt to learn planetary navigation.
I'm going to heartily disagree with you here. It took me just as long to use this method as it did to find sites manually. Jumping in and out of SC around a planet is a slow, painful, and frustrating process. With the tendency of ships to drift, it's easier to line yourself up along the compass points (0 or 180, then 90 or 270) so that you only need look at the lat/long coords to ensure you stay on track. get to one coord, then turn 90 deg and dial in the second. Regardless, it's an unbelievably tedious game element (I know, we're all gonna die of not surprise). Can't tell you how many times I've been tracking lat/long only to find my heading has drifted a bit.
I get the whole touchy, feely, 1920s era methods of navigation as a draw to the game, but please,
please, we need coordinate assignable bookmarks. (I might say this would be nice for deep space POIs as well, based on epoch and local system coordinates within systems if there's a real Keplerian model behind object locations)