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Tenmon 20261023

FITS/XISF image viewer, converter, index and search

filecart Linux Updated Oct 24, 2026
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Tenmon 20261023 screenshot
Tenmon 20261023 screenshot

About Tenmon

It 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

License: GPL-3.0
Release info Update on Oct 22, 2026
Release notes • LibXISF fix to support files from upcoming PixInsight

• Support for XISF formalized AstrometricSolution
Related tags astronomy
Listing dataFlathub

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