Once you have the G18 up to magnitude 18 there is no need for the G17. The G18 will work also for wide field. Inside ASTAP you can configure to use the G18 but the G17 will just take disk space, so best is to uninstall/remove.

I recently added Debian installer for G18. The .290 files from the zip file have to be extracted and copied or moved to /opt/astap

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