Hi all,
I just created two artificial horizon with the "select points" button, one for my balcony, one for the observatory. I also saved the regions. I createtd the regions on my PC. Now I want to transfer the data to my "balcony PC" and my "observatory PC".

Where can i find those data and how to get them into the other computers?

Juergen,

These points are stored in the sql database which in linux you can find in ~/.local/share/kstars/userdb.sqlite.
You can see the code that reads the db starting here:
invent.kde.org/education/kstars/-/blob/m...ref_type=heads#L2225
Apparently it's in a table called "horizons".

As far as I know, there is no code currently written to export/import these data to other instances of KStars, though you could write your own sql commands to export/import the table if you were proficient in SQL.

Apart from the above, the easiest thing to do would be to use the Artificial Horizons UI that you used and (a) create a new horizon with the + button below Regions, then (b) use the + button below Points and simply copy all the Az/Alt values into the new region.

Hy