Install swe-basic-data by entering the following commands in the terminal:
sudo apt update sudo apt install swe-basic-data
Description:
basic data files for the libswe package
This package includes basic data files needed by libswe, the Swiss Ephemeris. The basic data consists of these files: /usr/share/libswe/ephe/sedeltat.txt.inactive /usr/share/libswe/ephe/sefstars.txt /usr/share/libswe/ephe/seleapsec.txt /usr/share/libswe/ephe/seorbel.txt /usr/share/libswe/ephe/fixstars.cat The Swiss Ephemeris library can be used without installed data, if the user provides that data in her own private directory and points to it with SE_EPHE_PATH.
Homepage: http://swissephauto.blackpatchpanel.com/
Version: 1.80.00.0002-1ubuntu2
Section: universe/science