Browse free open source Astronomy software and projects for Windows below. Use the toggles on the left to filter open source Astronomy software by OS, license, language, programming language, and project status.

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  • 1
    Stellarium

    Stellarium

    A planetarium software that shows a 3D simulation of the night sky

    Stellarium renders 3D photo-realistic skies in real time with OpenGL. It displays stars, constellations, planets, nebulae and others things like ground, landscape, atmosphere, etc.
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    Downloads: 2,515 This Week
    Last Update:
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  • 2
    Sky Chart / Cartes du Ciel
    SkyChart is a software to draw chart of the night sky for the amateur astronomer from a bunch of stars and nebulae catalogs. See main web page for full download. This software is part of a full suite for astronomical observation: https://sourceforge.net/projects/ccdciel/ https://sourceforge.net/projects/indistarter/ https://sourceforge.net/projects/eqmodgui/ Requirement: https://sourceforge.net/projects/libpasastro/ See also: https://sourceforge.net/projects/indi/
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    Downloads: 1,210 This Week
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  • 3
    Gpredict

    Gpredict

    Real time satellite tracking and orbit prediction

    Gpredict is a real-time satellite tracking and orbit prediction application. Gpredict can track an unlimited number of satellites and display the data in tables and various graphical view.
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    Downloads: 327 This Week
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  • 4
    Celestia

    Celestia

    Real-time 3D visualization of space

    Celestia is an application for real-time 3D visualization of space, with a detailed model of the solar system, over 100,000 stars, more than 10,000 galaxies, and an extension mechanism for adding more objects.
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    Downloads: 206 This Week
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  • 5
    ChronosXP is a planetary hours astrology program for Windows. It runs from the system tray where it displays a glyph corresponding to the current planetary hour. Planetary hours/days can also be viewed for any given time or location.
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    Downloads: 53 This Week
    Last Update:
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  • 6
    EQAlign born as a software that assists to align a German Equatorial Mount (GEM) exactly to the Earth polar axis. Today, in adition to polar align feature, EQAlign is a full featured astronomical software.
    Downloads: 4 This Week
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  • 7
    Field calculator for Astronomical photography, pictures database management, ephemerides calculator for the planets, bright comets and asteroids and hours of visibility
    Downloads: 4 This Week
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  • 8
    JPARSEC is a Java Package of Astronomical Resources for Standard Ephemerides Calculations, focused on accuracy, documentation, 2D/3D charts, realistic planetary rendering, and Astrophysical modeling. For source code visit http://conga.oan.es/~alonso/
    Downloads: 3 This Week
    Last Update:
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  • 9
    This J2ME soft has data about Messier objects, galaxies, open and globular clusters and nebulas. Allows you to make an observation plan according to your interests, see Moon Phases of 2008 and Local Sidereal Time and Julian date. nochesky.googlepages.com
    Downloads: 1 This Week
    Last Update:
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  • 10
    python, SExtractor. A python module to read, write and manage SExtractor catalogs.
    Downloads: 1 This Week
    Last Update:
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  • 11
    wxEphe

    wxEphe

    Astronomical Ephemeris

    wxEphe displays Astronomical Ephemeris for The Sun, The Moon, and solar system planets, given date and observer's location.
    Downloads: 1 This Week
    Last Update:
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  • 12
    AQUYNZA is a set of C++ libraries, sample programs and doc's for the modelling, visualization and persistence of 3D environments. Its modular and highly portable. Its primary objective is helping to learn (and teach) computer graphics. (code in SPANISH)!
    Downloads: 0 This Week
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  • 13
    Ciclope Astro is a Web 2.0 application to control an astronomical observatory (telescopes, cameras, domes, etc.). It contains other tools as album (folksonomy & votes), forum, news (RSS), karma system. Developed using the Google Web Toolkit framework.
    Downloads: 0 This Week
    Last Update:
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  • 14
    Ciclope Planetarium is a web-based planetarium that provides a simulation of the sky from any location at any time and date. Developed using Google Maps API & AJAX. Available in PHP & J2EE. Integrated in the Ciclope Stars project (www.ciclope.info/stars)
    Downloads: 0 This Week
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  • 15
    Gridder is a group of portlets that simplify the use and administration of grid services. Especially for job submission management. Gridder also extends and documents the functionality of the OGCE Bundle. It is plenty of useful documentation.
    Downloads: 0 This Week
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  • 16
    Observation Manager
    Java based astronomical logging software which stores it's data in a free and open XML based format (OpenAstronomyLog). Discontinued project: Please check out the fork: https://github.com/capape/observation-manager for an updated version
    Downloads: 0 This Week
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  • 17
    Java version of Stellarium.
    Downloads: 0 This Week
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  • 18
    GLNebula is a program designed for the real-time visualization of planetary nebulae models produced by photoionization codes. It uses camera-oriented quads and point sprites to achieve real-time speeds, also provides free camera movements.
    Downloads: 0 This Week
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  • 19
    La P.A.P.A. (Python Alternative for Programming Astrophysics) want to give an alternative to the astrophysicists (and any one that use RSI-IDL) for start programming in Python using similar functions as IDL and at the same time learn the power of Python.
    Downloads: 0 This Week
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