Kosmorro is a program that calculates your astronomical ephemerides. It helps you to prepare your observation nights.
Using Kosmorro is as simple as invoking kosmorro in your terminal!
By default, it will give you the current Moon phase and, if any, the events that will occur today.
Kosmorro has a lot of available options to get exactly what you want, including the possibility to get planets rise and set.
This is free and open source software.
Key Features
- Get the rise, culmination and set times of each major object of the Solar system in just one command. All you need to do is to give your coordinates either in the arguments or the environment variables.
- Built-in PDF generator that creates fancy documents in just a few seconds. All you need is TeXLive.
- All the calculations made by Kosmorro are made offline, right on your computer.
- Cross-platform support – runs under Linux, macOS, and Windows.
Website: kosmorro.space
Support: GitHub Code Repository
Developer: Deuchnord
License: GNU Affero General Public License v3.0

kosmorro is written in Python. Learn Python with our recommended free books and free tutorials.
Related Software
| Astronomy Software | |
|---|---|
| Stellarium | A virtual planetarium |
| Gaia Sky | Astronomy visualization desktop and VR program |
| Celestia | Real-time space simulation |
| AstroImageJ | Tool for astronomical image analysis and precise photometry |
| Skychart | Prepare different sky maps for a particular observation |
| KStars | Desktop planetarium for KDE |
| OpenSpace | Interactive data visualization software |
| Aladin Desktop | Interactive sky atlas |
| Virtual Moon Atlas | Real-time moon observation |
| Ginga | FITS image viewer and toolkit |
| Digital Universe Atlas | Standalone 4-dimensional space visualization application |
| XEphem | Motif based ephemeris and planetarium program |
| mars-sim | General purpose simulator |
| Cosmonium | 3D astronomy and space exploration program |
| Tenmon | FITS and XISF image viewer, converter and indexer |
| Kosmorro | Calculate your ephemerides |
| Astra | Observatory control system |
| astroterm | Terminal-based star map |
| Skyviewer | Displays HEALPix-based skymaps |
| skyterm | Terminal-based astronomy program |
| ORSA | Framework for celestial mechanics investigations |
Read our verdict in the software roundup.
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