much has been discussed about the possibilities of astronomy on the Lunar surface, the chang'e landers actually did a bit of it.
It would be very easy to monitor Io's volcanoes, Europa's plumes, and Jupiter's atmosphere from Callisto's surface, since its atmosphere is negligible.
However, Titan's atmosphere is notoriously opaque at visible wavelenghts. Cassini was able to do some moderate resolution mapping taking advantage of a few IR windows, while the Voyagers' instruments were not adequate for that purpose.
A forum member on unmannedspaceflight.com speculated that Dragonfly might be able to take a picture of saturn against titans skyline... how cool would that be!!! but, beyond that, is there a science case here?
I toyed with Stellarium to see what would everything look like from Titan, and to my surprise, the rings seem to have a moderate but decent aperture. Not as great as from Iapetus, though. Saturn's atmosphere monitoring, and Enceladus plume science would be bonus.
Another consideration is that IR space telescopes benefit from cryogenic temperatures, titan's atmosphere is not only cold, but efficent at removing the heat.
My question is; how practical and useful would it be for a lander or a human colony to do dedicated astronomical infrared observations of the Saturn system? or maybe even the rest of the cosmos for that matter?
is there an obstacle, such as atmospheric turbulence, the presence of tholins, etc?... maybe the pictures would be too blurry for science? or anything that can be used to "point down" might as well be used to "point up"??