EDSM (Elite Dangerous Star Map) was at first a community effort to store and calculate systems coordinates around the Elite: Dangerous galaxy.
It is now the main API used by dozens of software and websites to find systems, coordinates, information (governement, allegiance, faction...) and celestial bodies (types, materials...).
EDSM has become a must-have for all respectable explorers, and commanders in the galaxy, with it you can:
9,022,922 systems stored.
6,220,144 have known coordinates.
592,116 have locked coordinates.
1,422,136 distances stored.
390 routes shared.
18,344,232 entries in 10,656 flight logs
282 entries in 127 logbooks
0.002256% of the galaxy has been discovered on EDSM, it will take 70,519 years, 2 months, 28 days to discover it entirely.
Current known galactic population: 6,613,881,725,676