FreeAstro

Downloads:

• Source package: siril-0.9.4.tar.bz2
• Debian stable: 64 bits
• Debian testing: 64 bits
• Ubuntu 16.04 / Linux Mint 18.XX:

   sudo add-apt-repository ppa:lock042/siril
   sudo apt-get update
   sudo apt-get install siril

• Fedora 24: 64 bits, other versions here
• Mageia 5: 64 bits
• Arch Linux: All.