CCDciel is free software released under the terms of the
GNU General Public License
CCDciel has all functionality required for advanced imaging of celestial objects including sequences for fully automated unattended operation. But it is also easy to use to make simple capture in a manual way.
For devices connection it uses the INDI and ASCOM standards drivers. It can control the CCD/CMOS camera, focuser, filter wheel, rotator and telescope mount and uses image resolving software such astrometry.net for accurate positioning. It can serve both the beginner astro photographer as the advanced who can take a nap while the equipment is imaging.
You can use CCDciel on Windows, macOS or Linux.
The program is still in beta version but it is now stable and run smoothly on every platform
In any case I will appreciate your help for testing this software and reporting any bug or other problem you may encounter.
A copy of the program documentation in pdf format is included with the program.
You can ask the user group for any question about the software usage.
The source code is available from GitHub