That system has known coordinates!
It is located at -73.625 / -135.75 / -359.71875.
Metal-rich body (1 to 3 ls), Earth-like world (47 to 71 ls), Water world (39 to 150 ls), Ammonia world (98 to 267 ls), Terraformable (37 to 73 ls)
That system was first discovered for EDSM by Zak Starfall on Mar 28, 2015, 3:43:55 PM.
It was named by the Elite: Dangerous community with the name of: Barnacle Sites - the Pleiades
1767 ships passed through Pleiades Sector JC-U b3-2 space, including 13 ships in the last 7 days.
2 ships passed through Pleiades Sector JC-U b3-2 space in the last 24 hours.
Diamondback Explorer - 1
Orca - 1
Starting in January 3302, explorers discovered alien barnacles in the Pleiades system of Merope. Over the next few months barnacle locations were found at numerous locations in and around the Pleiades cluster. The most distant of these barnacle sites is approximately 50 light-years from Merope.
In this particular system no less than 38 barnacle sites has been found. Among these are the 'Canonn Crater', home to five barnacle sites all within a few kilometers range of each other. In March 3302 the location became a hotbed of scientific study for the Canonn Research Group when the Barnacle site was first discovered.