Omg, i fell asleep during my travel from alpha centauri to proxima centauri (Hutton Orbitals) when trying the community goal stuff my first time.
A 0.22 lightyears travel inside one star system is insane. Starring 90 minutes (no joke) on the black screen while flying in super cruise within one star system is a bit too much, even for a patient player.
More info about the goal can be found here:
Community Goals Update 04/09/15 | Elite: Dangerous Community Site
Im not sure yet if such travels are worth it.
In a small ship you might need many travels... and in a fast ship you might make same amount of money or more in the same time while trading.
Well, ive to go there another time to collect my reward (unfortunatly).