You must give the 'StarBarycenter' a different name.
StarBarycenter "MyStar System"
RA xx xx xx
Dec xx xx xx
ParentBody "MyStar System"
And you need two scripts!
The script for the 'StarBarycenter' belongs in the folder 'addons\catalogs\stars' and the script for the 'Star' belongs in the folder 'addons\catalogs\planets'
Yes, but what should I call it? I am making an entry for a star that exists in real life.