The software is typically provided as a 64-bit installer ( NINASetupBundle ). While a 32-bit version exists, 64-bit is preferred for modern hardware.
The official source for all N.I.N.A. files is the Nighttime Imaging 'N' Astronomy Download Page . nina download astronomy
An optional but highly recommended ~1GB download from the N.I.N.A. site that allows you to browse and frame targets offline. The software is typically provided as a 64-bit