Convert st7 to png

What is the difference between .st7 and .png?

Description: The ST7 file type is associated with images captured by SBIG CCD cameras, specifically the ST-X series, which are designed for astronomical imaging. These files contain raw data from the camera's charge-coupled device (CCD), recording detailed information about celestial objects as seen through the telescope with which the camera is paired. The format is primarily used by astronomers and astrophotography enthusiasts for deep-sky imaging, allowing for post-processing to enhance detail, correct for atmospheric distortion, and calibrate colors. Given their specialized nature, ST7 files typically require specific software to open, analyze, and process the data they contain.; A PNG file is an image file stored in the Portable Network Graphic (PNG) format. It contains a bitmap of indexed colors and uses lossless compression, similar to a .GIF file but without copyright limitations. PNG files are commonly used to store graphics for web images.