This can be anything from Hyperspace in Star Wars, Warp Drive in Star Trek, travel through the Warp in Warhammer 40k or anything else.
I’ve always liked “slow” FTL travel, where going a few light-years still takes a few days or so. I also really like travel through an alternate dimension like in 40k, Event Horizon, Witchspace in Elite Dangerous.
I wanna know your favorite versions, or do you prefer stories that obey the laws of known physics, like the Expanse or Rimworld?
the other 6 points are coordinates to basically zero in to the planet your dialing, i think its explained more in the first few season, gotta rewatch the first few seasons where carter explains why they use 6 other costellation, and the "planet your own unique symbol is probably the constellation unique to that part of the space. the pegasus is this way too, but the SGU ones is based on a different system