Of course it does. You haven't blasted off the planet yet. It still exists, just in a different location. Until you're in the same sector in space as Planet X, your teleporter will still have the old location.
Scratch all that, shows what you get for assuming. My teleporter also shows the little rascal as being in 552. Moved to a different sector, returned, nada. It's not super important though, right? I mean, we can still get there and do things. Maybe the teleporter has had a rough year and needs time to recover from its massive hangover? Sometimes holidays with family can be tough, sometimes it's the lack of family. Stop being so judgy and just give your teleporter the love and support it needs already! *sob*