Telescopes are awesome and this mod is built to explore the universe, so what about that you need to "discover" a planet?
To discover a planet, you need a telescope, then you need to make a picture of that planet, it then opens up in the star map and the planet GUI.
Once you unlocked the planet, it`s moons are unlocked too, once you unlocked a moon it`s planet (and that planets moon) are unlocked too.
You don`t need to unlock the moon.
This makes a lot of sense and gives a lot of a feel of that you are exploring space, what this mod wants to give you.
Or, in my possible-future add-on/possible future update, exploration, then unlocked in the starmap, click on it, then it's your starmade style waypoint. Other planets generate randomly for discovery, and you send a probe to check for life, oxygen etc...