Not that easy.
EDMC, or the ED Market Connector:
https://github.com/EDCD/EDMarketConnector/wiki ; originally the main purpose was to populate the database with market data - what sells where for how much. That also includes more information about the "what" and the "where".
EDDiscovery:
https://github.com/EDDiscovery/EDDiscovery/wiki ; originally focussed (I got to be careful what I'm saying here, the author recently reprimanded me for ignoring the last 4 years of development

) on keeping an explorer's log, nowadays doing nearly everything you might wish, except maybe make the coffee. Great to check what you have been doing, who shot you the last time or how much money exactly your NPC copilot siphoned off (i.e. it will render the sttuff the game writes into your player journal into an easier readable format).
Elite Observatory:
https://forums.frontier.co.uk/threa...f-new-ones-on-the-fly-while-exploring.521544/ ; don't know exactly what it does right now, but it started off as a program that would take a look at the FSS scan data and notify you of interesting stuff in the system, like moons inside rings (anything you want to know - it's configurable)
EDAstro is one of the sites that makes use of the data collected by these apps, like EDDB or EDSM. In this case, the focus is on visualizations - and especially short movie clips.
The programs have space for various plugins - most of which I don't use (I think I still have the Huttton Helper linked into EDMC) since they often make use of screen overlays - which won't work when playing in VR. But on pancake, these can tell you about wanted CMDRs in the system you just jumped into, which direction to drive in your SRV if want to get to a certain point on a planet,... stuff like that. The Hutton Helper is the plugin of the Hutton Orbital Truckers, keeping track of stuff you do for Hutton, or logging your time for the Hutton Orbital race.