Alexander Wolf

Thanks! I see in the log: Error converting DSO data! Cannot open file ".\nebulae\default\catalog.pack" This is strange, but it may depend by user' permissions. Do you see the same error when catalog.pack is created by hands?

No need create catalog.pack file by hands - it should be created by Stellarium. Please share the log.txt file from Stellarium (after attempt of conversion of course)

What exactly you doing - step-by-step?

An equinox is the instant of time when the plane of Earth's equator passes through the geometric center of the Sun's disk (or two places on the celestial sphere at which the ecliptic intersects the celestial equator if we say about coordinates).

See https://stellarium.org/doc/0.20/classCustomObjectMgr.html or https://stellarium.org/doc/0.20/classMarkerMgr.html

Thanks! The typo is fixed

Ah! Thank you very much for explanation!

I see artwork for constellation Lyra and this is definitely not lyra :) P.S. In the string "The desert natural gardin and the goats" what is "natural gardin"?