See the screenshot. Found the Huaramarca stargate very easily. Not hidden at all. Even the Sung fly by... very convenient navigation markers are right next to it...
Also, the Commonwealth fortress in this system will only give me a mission in which I have to destroy the Huari fortress. Doing so will make the Huari storyline unavailable.
Also seen on the screenshot, the constant screaming of Volkov for Helena as he is unsuccessful in docking with her wreck.

Screenshot from 2017-07-27 16-19-16.png
Screenshot from 2017-07-27 16-19-16.png