Kosmorro
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kosmorro.space
Kosmorro
@kosmorro.space
Software to help you to prepare your astronomy observation nights, written in Python.
Website: https://kosmorro.space
Happy post-Christmas to all of people who celebrated yesterday!
Version 1.0 will be released early January!
December 26, 2025 at 8:14 AM
Just tagged version 1.0.0rc3, probably the last release candidate before the final release!
November 11, 2025 at 9:12 AM
Just published the second release candidate for Kosmorro 1.0, that includes a few fixes and new translations!

github.com/Kosmorro/kos...
Release Version 1.0.0 RC2 · Kosmorro/kosmorro
What's Changed feat: add support for Python 3.14 by @Deuchnord in #421 feat: translations update from Hosted Weblate in #381 New language: Romanian by @Nic-T New language: Tamil by @TamilNeram ...
github.com
October 27, 2025 at 8:52 PM
Great news for Debian users: you can now install Kosmorro with your package manager!
kosmorro.space/cli/download...
Download Kosmorro on Linux
All the instructions to install Kosmorro on Linux!
kosmorro.space
October 22, 2025 at 4:04 PM
Weblate project is now up-to-date, you can start translating!
hosted.weblate.org/projects/kos...

Looking for something else to do to contribute? See kosmorro.space/contribute!
Kosmorro 1.0.0 RC1 is now released!!!
Feel free to update and try to break it! I will update the strings on Weblate as soon as possible, so traanslators can contribute!
October 20, 2025 at 3:58 PM
Kosmorro 1.0.0 RC1 is now released!!!
Feel free to update and try to break it! I will update the strings on Weblate as soon as possible, so traanslators can contribute!
October 19, 2025 at 4:45 PM
Version 1.0 is about to be finalized today! Be prepared for the first release candidate!
October 19, 2025 at 10:22 AM
Windows users, I heard you!
You have now instructions to install and use Kosmorro on your operating system. With WSL. Please, don't ask.
kosmorro.space/cli/d...
Download Kosmorro on Windows
All the instructions to install and use Kosmorro on Windows!
kosmorro.space
March 30, 2025 at 8:59 AM
Development is gradually resuming after a long time of stagnation, en route to version 1.0, which I hope to publish in one or two months!
March 16, 2025 at 11:22 AM
Kosmorro has just been translated in Tamil!
Thanks TamilNeram for your amazing work!

github.com/TamilNeram
TamilNeram - Overview
தமிழ்நேரம் - எனது தமிழ் புனைப்பெயர் https://www.credly.com/users/ta/badges - TamilNeram
github.com
February 9, 2025 at 10:25 AM
This week, Kosmorro got translated in Roman, thanks to Nic-T! 🇷🇴
Translation is one of the easiest way to contribute. All you need is to speak a language that it does not!
hosted.weblate.org/p...
Kosmorro @ Hosted Weblate
Kosmorro is being translated into 9 languages using Weblate. Join the translation or start translating your own project.
hosted.weblate.org
June 22, 2024 at 12:23 PM
Hey Bluesky, new account here!
Here, I'll post updates about the development of Kosmorro, a free (as in freedom) software to calculate ephemerides and help amateur astronomers to prepare their observation nights. :)

Account maintained by @deuchnord.fr, the creator of the project.
April 26, 2024 at 8:21 PM
Reposted by Kosmorro
Using #Kosmorro, my program to calculate astronomical ephemerides, on macOS?
You can now install it with Homebrew!

👉 kosmorro.space/cli/download...

#astronomy #Mac #Homebrew
Download Kosmorro on macOS
All the instructions to install Kosmorro on macOS!
kosmorro.space
April 26, 2024 at 7:47 PM