I don't understand the reasoning ib¡n the closing message. I specifically asked the system to install stellarium. I didn't specifically ask the system to install the libraries.
apt-get has this information but apparently decides to ignore it. Do you mean that "upgrading as many packages as possible" is a better algorithm than "upgrading the packages that I specifically asked to be installed as priority"? I think this report clearly shows that's not the case. So: What's wrong with trying to improve the algorithm?