AstroFITS
Auto-Stretch and Transform
About
This app allows users to quickly open and view FITS files on iOS devices using GPU acceleration. It features automatic image stretching and supports various color formats and bit depths, making astronomical image analysis more accessible.
What's New in AstroFITS
1.4
March 25, 2026
- Add auto debayer for type GRBG,GBRG,RGGB,BGGR. Seestar "save individual file" option saves each image as undebayer fits file. Seestar final image is a 3 channels debayered fits file. AstroFits app will auto debayer and display the image.
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FAQ
What is AstroFITS?
AstroFITS is an iOS application designed for quickly opening and viewing FITS files. It utilizes GPU acceleration for fast processing and includes an auto-stretch feature to enhance image visibility.
How do I use AstroFITS?
To use AstroFITS, download your FITS file to your device, tap the image icon, select your file, and the app will automatically stretch it. You can then adjust image levels and curves before saving.
What FITS file formats does AstroFITS support?
AstroFITS handles FITS files with RGB or gray color and supports BITPIX formats of 8, 16, 32, -32, and -64.
How fast is AstroFITS?
The app is designed for speed, taking approximately 2 seconds to open and automatically stretch a 50MB FITS file.
Does AstroFITS have ads?
No, AstroFITS does not contain advertisements, providing an uninterrupted user experience.
What devices is AstroFITS compatible with?
AstroFITS is compatible with both iPhone and iPad devices.
What is the age rating for AstroFITS?
AstroFITS has an age rating of 4+, making it suitable for a wide range of users.
How often is AstroFITS updated?
The latest version, 1.4, was released on March 25, 2026, indicating ongoing development and support for the application.