I would like to produce some astronomical star charts; something like this:
http://astropixels.com/messier/summer.html
or the one here. Most star charts are set for the Northern Hemisphere; I'm in the Southern, and would like to have some printable charts for my latitude and longitude, which contain the objects I want, and in which all the objects are appropriately labelled.
There are many astronomy software systems, and libraries for different programming languages, but I haven't yet found one which creates nicely labelled charts. And as I say it has to run under Linux, which is my preferred OS. (Well, in fact, it's my only OS).
Are there any such systems or libraries?