To avoid spoil, the answer is here
However, were you able to use the telescope when the tower was transparent? Normally it's impossible, we see blur...
If so, on which platform do you play ? It's maybe a glitch...
Well, when I say I looked at each star, I mean by that I zoomed at each. Actually I scanned the whole scene and each time there was a detail, I zoomed on it. Of course I may have missed something, but it's quite hard if I don't know what I'm searching. Not sure I will go back. That's not really a fun part of the game.
