I'm afraid I'm out of ideas regarding your issue, since it seems all perfectly fine. Having unabridged versions of .sc files attached here could help, as JackDole
I deleted the stars and planets but it still won't show up
This is what the file looks like:
Cluster "ZGC 1"
Galaxy "Milky Way" // parent galaxy
Type "Globular" // type
RA 9.78333333 // right ascension
Dec 20.1166667 // declination
Dist 1230.9 // distance from the Sun
Radius 4.68 // radius
AbsMagn -3.6 // absolute magnitude
CenPow 0.5 // star concentration parameter
Age 760 // age
NStars 1500 // number of stars
Color (0.86 0.92 1.00) // color of the star-like particle
I put a closing bracket at the end so I don't understand these errors:
[MT] "addons/catalogs/clusters/ZGC1.sc" line 3: ERROR: Syntax error ' "Milky'
[MT] "addons/catalogs/clusters/ZGC1.sc" line 15: ERROR: Unexpected end of file in the string constant
[MT] "addons/catalogs/clusters/ZGC1.sc" line 1: ERROR: Closing bracket '}' expected in the tag 'Cluster'
It's as if it weirdly expects a closing bracket to be right after cluster, spaces aren't allowed in galaxy names, and that a closing bracket is invalid to end the script.