Could be, but how did it appear double? Anyway, that is not why I posted.
Titan orbits Saturn. It's position changes every night. It can certainly be to Saturn's lower right, but Titan can be anywhere on it's (currently highly) elliptical orbit around Saturn.
Yes, Titan orbits Saturn. Practically everything in the sky orbits something or other. It is strange that up until the other night, it has always appeared to be at the lower-right of the planet, even through my 6" f/5 Newtonian; coincidence? The other night, through my Maksutov, Titan appeared opposite of that, at the upper left, and for the first time ever; perhaps something to do with the optical configuration. I just got that Maksutov recently, so I wasn't too surprised by that. Maybe I should stick with the "Old Ones", refractors and Newtonians, and for less confusion.
In any event, perhaps it wasn't Titan, nor Zeta Sagittarii which is a blue-white star. The star is also known as "Ascella", and is a triple-star system...
I would say that we would have to have been there with the OP at the time, for us to have a look, and to know for certain. I have a stellar view to the south, and of the "Teapot", so I will be observing the star in question myself, and to make certain that it isn't yellow. Who knows, I may also run across what the OP claims they saw. The star is located at the bottom of the asterism's "handle".
I think we all should have a look one night soon, before the cold winds begin to blow, and instead of going out to eat and/or "party", or staying indoors and watching television.
I think I'll use my 5" "Bird Jones" for the event. I was seeing double with it after it had first arrived, but I have it well-collimated now, and it's excellent for the higher powers of which the telescope is capable. I'll even try to split it, despite the nays from the gallery. After all, it's only 88 light-years distant.