Mapping, tracking, categorizing

One of my fondest memories of playing SC2 was my buddy and I building a list of every system, star, planet, moon, resource, and life form that we could find. We never completed it, but it was the sort of task that only a game like SC2 could offer.

What I'd love to see is a system in game that allowed for some hybrid of tracking, not automated entirely so as to take away from the fun of discovery and building that database by "hand". Perhaps a list that captures the major features of a system but leave space to catalog details that the player finds most interesting.

The bigger nerd in me wants an export to .csv option too, because excel is my next most favorite game. 🤓 

Anyone else build a database like this before? How would you want to do it in the new game?