Mapping the sky in Elite Dangerous

While exploring one system, I happened to notice there was an interesting arrangement of bright objects off in the distance. They were too far off to be in-system, but they were bright enough that I imagined they had to be nearby.

Unfortunately, I never could quite nail down exactly what I was looking at - let alone how I might be able to get closer to it. Correlating the first-person POV to the Galaxy Map's perspective, especially when looking for anything smaller than a nebula, seems to be nigh-impossible. Even if I can get myself properly aligned, there's so many other things that might be between myself and my target - with all being displayed at disproportionate size/intensity in the map - that there's very little chance I'll be able to properly identify what I've seen.

I even noticed the same arrangement of objects while in several other systems along my journey that night. Still, nothing really helped to narrow down what it was. Though my route appeared at times to be taking me in the general direction of this "constellation", I never really felt like I was getting significantly closer.

Is there any particular method that can be used to identify far-off stars or other objects beyond the local system, which are seen from the cockpit? Is there perhaps a mod available that allows me to point to something from the cockpit view and say "What's that?" or "Show that to me in the Galaxy Map."?

Note: One thing that I know could help is the Navigation panel. You can select neighboring systems from that menu, and see if what you're looking at happens to be one of them. However, I am looking for something that will also work for systems that are further away - like more than 100 Ly.