For these which have Horizons season pass or lifetime license is available surface landing on barren and ice planet types (for now only these two). Simple landing on planet's surface is easy, if you avoid planets with high gravity, where also landing may be quite tricky . Something different is, if you want landing on given coordinates ... there may be destination for the Tip Off missions, special settlements (like INRA bases), barnacles, thargoid's structures, Guardians sites and more. Watch first the video posted below and then look on the picture which will offer guide which is easy to remember. ... I'm playing ED for few years already, but I need admit that I really didn't knew how it really works ... I was using always trial & error method for reaching the destination.
Explaining how surface navigation in ED works in few minutes:
And here simple image guide:
p.s.: here is an external tool which can help with this: ed:bearing , but I always wanted to know how to land on concrete place myself.