If you run a mission you can also bookmark the mission site location if you want.
By luck it can be more than 14.3 AU away from any celestials in that system so out of enemy player’s D-scan range.
You complete the mission, the wrecks and objects disappear but your safe spot remains there.
It is not as instant and easy to make as the warp between A-B and B-C celestials for 1 and 2 bookmarks then warp between the 1-2 bookmarks to make a random safe spot in that A-B-C triangle, but mission site bookmarking is also a way to make a safe spot.
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