So I decided I was going to go visit Eissentam finally, and starting in my home galaxy of Calypso, I figured hey, I'll do the thing everyone suggests, go through center, find ancient ruin, find portal, input glyphs that warp near center, go through center, rinse and repeat.

Well, I figured I'd visit an Atlas station first, thinking that if I "recreate the galaxy" again, I could just select paradise systems and I'd find Eissentam. I visited an Atlas station right near the center of Calypso, however, despite having a new Heart of the Sun, it wouldn't let me recreate a new universe — instead, the quest log just tells me to locate a black hole. Which I did, but obviously didn't do much since I was already near the center, and actually just erased the Atlas Path quest from my log.

I tell you this because the process of going through a black hole triggers a bit of a glitch.

When I went through the center of the galaxy and dropped into the new one, I was about 3500 LY from the new galaxy's core.

Turns out, this is an actual thing: it's called a Core to Core jump. If you enter a black hole before entering the galactic center, you will enter the new galaxy about the same distance that you were when you went into that black hole. This stays active, you don't need to visit new black holes — I'm jumping my way to Eissentam right now: go through center, fix and fuel ship's hyperdrive, go through center. No locating ruins, no inputting portal coordinates.