Tenmon
FITS/XISF image viewer, converter, index and search
Dušan Poizl ✓ Verified
space.nouspiro.tenmonIt is intended primarily for viewing astro photos and images. It supports the following formats:
- FITS 8, 16, 32 bit integer and 32, 64 bit float
- XISF 8, 16, 32 bit integer and 32, 64 bit float
- RAW CR2/CR3, DNG, NEF
- JPEG, PNG, BMP, GIF, PBM, PGM, PPM and SVG images
Features of application:
- Using same stretch function as PixInsight
- OpenGL accelerated drawing
- Index and search FITS XISF header data
- Quick mark images and then copy/move marked files
- Convert FITS <-> XISF
- Convert FITS/XISF -> JPEG/PNG
- Image statistics mean, media, min, max
- Support for WCS
- Thumbnails
- Convert CFA images to colour - debayer
- Color space aware
- Histogram
- Scripting
- Plate solving
Screenshots
Observed history
| App | Change | Version | When ↑ |
|---|
No observed changes yet.
The initial import establishes a baseline. Future version changes will appear here.
Browse the app catalogue →Upstream releases
Release notes supplied by the developer. These dates are not Flathub package publication times.
2026091313 Sept 2026
- Fix graphical bug with fractional scaling
2026062626 Jun 2026
- Open FITS/XISF files on MacOS from Finder
- New app icon
- Open FITS files with non-ASCII characters in path
- Correctly index headers in compressed FITS files
2026041212 Apr 2026
- Add database tree to show database entries grouped in tree structure
- Add database summary table. This can show total exposure time for OBJECT and FILTER for example
- Copy files to clipboard from database view
- Copy to clipboard text from database tables so they can be pasted to Excel
- Add CLI option to run scripts and generate thumbnails
2026021717 Feb 2026
- Fix potentional crash
- Enable sorting of FITS info