PixInsight is a powerful astronomical image processing software.
It allows you to perform image analysis and measurements, combine flat field, dark frame, bias, and raw images to create a clean image,
integrate images, combine images with different filters to create color images, blink between images, and much more.
PixInsight utilizes both premade processes and scripts programmed by users, and you can also write your own scripts.
The software efficiently handles a large number of images and is commonly used by professional astronomers for astronomical image processing.
Link to a free trial or to purchase the software: