I noticed how far Deneb is but why do different regions of space allow faster travel?Christopher said:
^^Well, it varies. Titan's route in OH ranges from about 550-750 light-years away over the course of the book. The Buried Age takes Picard about 800 ly or so from Earth in two different directions. Mintaka from "Who Watches the Watchers?" is about 900 ly away. Deneb is believed to be somewhere between 1600-3200 ly away, so Farpoint Station was aptly named.
The problem is that various Trek shows have used known star names at random without considering distances (and indeed many of their distances were not known at the time). We have to assume that some regions of space allow faster travel than others, explaining why some outlying regions have been more visited than other nearer regions. Or it could be simply that the more distant regions have attracted more attention due to the cosmic phenomena out their way.
I play with the warp travel mod on celestia that uses the chart in the Star Trek Encyclopedia and it takes literally days just to get from earth to alpha centauri at warp 7.