mikko.laine@gmail.com Mikko Laine An open source stacking software for astronomical images taken with a DSLR camera. Mosstack can calibrate, debayer, register, align and stack photos taken with modern DSLR's from Canon. It has a command line user interface inspired by AstroSurf IRIS and a graphical user interface written with PyQt4 Enables OpenCL support and pulls in pyopencl. This makes some operations much faster but requires specific hardware and drivers. Pulls in PyQt4. Program works on command line interface without it but for GUI the library is required. mikko_laine/mosstack