After rewatching the episode just a couple of observations
1)In the Hotel room when jack is talking to the Hotel dude, He opens the drawer there is a packet of hydralazine used to treat high blood pressure. Used over a long period of time, can cause Lupus.
Lupus is also a star constellation between centaurus and scorpius. Dont know if there is a link and I have not had chance to read the astronomy threads but I'm heading there now.
2) Jack's eyes they are brown through most of the episode but in the FB to the Airport scene his eyes are blue, maybe contacts?
May not be anything but thought I would post it.
Many thanks for the great boards.