# How many possible destinations can a hyperspace travel have?

In Episode V, when looking for the Falcon, Vader tells Admiral Piett:

Admiral Piett: Lord Vader, our ships have completed their scan of the area and found nothing. If the Millennium Falcon went into light-speed, it'll be on the other side of the galaxy by now.
Darth Vader: Alert all commands. Calculate every possible destination along their last known trajectory.
Admiral Piett: Yes, my Lord. We'll find them.

In terms of a hyperspace travel, from one specific point, how many destinations it is possible to have? Does this phrase even make sense? How can they calculate every possible destination, and what would they do with it? It's not like they can travel to every possible destination...

• That should depend on a particular departure point -- i.e. if there are ten planets on that trajectory line before that line leaves the galaxy then there are ten possible destinations. If there's only one planet and then the trajectory line runs into a star, then there's only one possible destination.
– Null
Jul 20, 2016 at 17:55
• @Null well, two possible destinations, but that second one is kind of deadly. Jul 20, 2016 at 18:05

There are hyperspace lanes in Star Wars. Which means you can't travel wherever you want in lightspeed. There are safely charted routes which you can take, which do not lead you close to gravitational bodies and other dangerous anomalies. In fact, pirates are known to hide out near big hyperspace lanes and pull ships out of hyperspace using gravitational devices.

Based on the Falcon's last known trajectory, they can probably check which possible hyperspace routes they could have taken (assuming you can't turn 180 degrees in lightspeed, they had to have taken a lane in that general direction). Just check the highway map.

"Calculate all possible destinations" means check every system or stop they could possibly make which lies on the hyperspace lanes in that direction.

And by "alert all commands", he means: tell everyone and their mother to be on the lookout in those locations.

• I believe there are also mentions of certain points along hyperspace lanes where ships will drop out of lightspeed to adjust their course providing opportunities to pirates without 'gravitational devices' Jul 20, 2016 at 22:52

They can see what direction the ship left the system in, and then based off of known systems, predict where a ship of that size with the fuel, hyperspace engines and other parameters could go.

Also, they aren't planning on visiting every possible destination, it's even said in the quote