C++ Astronomy Software

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Browse free open source C++ Astronomy Software and projects below. Use the toggles on the left to filter open source C++ 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: 2,984 This Week
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  • 2
    HEALPix

    HEALPix

    Data Analysis, Simulations and Visualization on the Sphere

    Software for pixelization, hierarchical indexation, synthesis, analysis, and visualization of data on the sphere. Please acknowledge HEALPix by quoting the web page http://healpix.sourceforge.net (or https://healpix.sourceforge.io) and publication: K.M. Gorski et al., 2005, Ap.J., 622, p.759 Full software documentation available at https://healpix.sourceforge.io/documentation.php Wiki Pages: https://sourceforge.net/p/healpix/wiki/Home Exchanging Data with HEALPix (in FITS files): https://sourceforge.net/p/healpix/wiki/Exchanging%20Data%20with%20HEALPix/ GDL and FL users should read https://sourceforge.net/p/healpix/wiki/HEALPix%20and%20GDL/
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    Downloads: 542 This Week
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  • 3
    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: 80 This Week
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  • 4
    PreviSat

    PreviSat

    Satellite tracking software

    PreviSat is a satellite tracking software for observing purposes. Very easy to use, it shows positions of artificial satellites in real-time or manual mode. PreviSat is able to make predictions of their passes, predictions of MetOp and COSMO-SkyMed flares, transits of all satellites, predictions of Starlink satellites passes and several other calculations.
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    Downloads: 94 This Week
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  • 5
    Astrolog

    Astrolog

    Astrology calculation, charting, and analysis

    Astrolog is astrology software featuring many types of computation, display, graphics, comparison, and analysis. It supports multiple environments, such as MS Windows and Unix X Windows, with complete C++ source code available. For more information see the Web site: http://www.astrolog.org/astrolog.htm
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    Downloads: 61 This Week
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  • 6
    Project Apollo - NASSP
    Project Apollo - NASSP (also known as NASSP or NCPP) is an add-on for the Orbiter space flight simulator. Project Apollo simulates the Apollo missions to Earth orbit and the Moon and the planned post-Apollo missions that never flew.
    Downloads: 34 This Week
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  • 7

    libpasastro

    Provide Pascal interface for standard astronomy libraries

    Provide shared libraries to interface Pascal program with standard astronomy libraries. libpasgetdss.so : Interface with GetDSS to work with DSS images. libpasplan404.so: Interface with Plan404 to compute planets position. libpaswcs.so : Interface with libwcs to work with FITS WCS. This libraries are used with the following projects: https://sourceforge.net/projects/skychart/ https://sourceforge.net/projects/ccdciel/ https://sourceforge.net/projects/virtualplanet/ https://sourceforge.net/projects/virtualmoon/
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    Downloads: 78 This Week
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  • 8
    A code for fast multi-dimensional density estimation . Instead of assuming an a-priori metric definition, it calculates a locally adaptive metric for each data point by using, a Shannon Entropy based, binary space partitioning scheme.
    Downloads: 138 This Week
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  • 9
    echoes

    echoes

    Echoes is a radio spectral analysis software for SDR devices

    Echoes it's a radio spectral analysis software for SDR devices, designed for meteor scattering purposes. The older releases supported only RTL-SDR devices. They are very cheap SDR based on DVB-T TV tuner dongles based on Realtek's RTL2832U chipset. Starting from 0.50 Echoes embeds SoapySDR allowing the support of many other SDRs. Echoes doesn't demodulate neither decode any human-made signal. Its main goal is to analyze and record the total power of natural signals and generate screenshots and tabular data (CSV,) output in presence of particular peaks in a selected narrow range of frequencies. Since there is no demodulation, there is no provision for audio listening, except for a notify sound when an event has been recorded. Finally, Echoes can also operate getting an audio input, thus producing audio spectra. This way, Echoes can also be used with traditional receivers.
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    Downloads: 71 This Week
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  • 10
    C-Munipack
    The C-Munipack is an astrophotometry software package, which offers a complete solution for reduction of images carried out by CCD or DSLR camera, intended on a observation of variable stars, exoplanets and minor Solar System bodies. It provides a simple and intuitive graphical user interface.
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    Downloads: 27 This Week
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  • 11
    Navigational Algorithms

    Navigational Algorithms

    Navigational Algorithms - Marine navigation

    - Celestial Navigation: Sight Reduction, Line Of Position, Fix... - Positional Astronomy: Nautical Almanac, RA, GHA, Dec - Coastal Navigation: Range, Bering, Horizontal angles, IALA... - Sailings: Rhumbs, Loxodromic, Orthodromic, Meridional parts... - Weather , Tides - Software: PC, Android https://sites.google.com/site/navigationalalgorithms/
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    Downloads: 41 This Week
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  • 12
    ASIStudio

    ASIStudio

    All-in-one Astrophotography Software Works on multi-OperatingSystem

    Downloads: 72 This Week
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  • 13
    nuSolve

    nuSolve

    Geodetic VLBI data analysis software.

    Downloads: 43 This Week
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  • 14
    Xplanet is a solar system simulator which calculates accurate positions for the major planets and satellites. It displays multiple bodies, eclipse shadows, and customizable labels and markers.
    Downloads: 14 This Week
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  • 15
    PSRCHIVE is an application suite and development library for use in the storage and analysis of pulsar astronomical data. It includes an extensive range of algorithms and tools commonly used in a wide variety of experiments.
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    Downloads: 33 This Week
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  • 16
    PP3 creates celestial charts. It generates resolution independent sky maps of very high graphical quality. They can be used for example as illustrations in books or on web pages. Databases are included but you may use own data if you wish.
    Downloads: 7 This Week
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  • 17
    Astrology software inspired by the SYMBOLON deck. This software calculates the planet positions and make symbolon card tables according to the calculated constellation. It can draw the classical circular horoscope also.
    Downloads: 5 This Week
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  • 18
    Moon Phase

    Moon Phase

    Displays the phase of the moon in the system tray.

    Displays the phase of the moon in the system tray. Additionally, a window can be displayed that shows user configurable data about the moon (rise/set times, percent illumination, etc).
    Downloads: 15 This Week
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  • 19
    DarkLight Cover/Calibrator

    DarkLight Cover/Calibrator

    DIY project to build a cover, flat panel or combo flip-flat panel

    The DarkLight Cover/Calibrator (DLC) is a DIY project to build a motorized telescope cover, flat panel, or a combination flip-flat system. Its modular design supports various setups: a 12V light panel without a servo for a wall-mounted calibration panel, a servo-only cover for sky flats, or both integrated into a flip-flat mechanism. The DLC also includes optional dew heating to reduce extra equipment and cabling. With available drivers, it works with ASCOM or INDI. We’re excited to announce that the DarkLight Cover Calibrator project has officially moved to GitHub! πŸ”— New GitHub Repository: πŸ‘‰ https://github.com/10thTeeAstronomy/DarkLight_CoverCalibrator Β© Nathan Woelfle 2025. All Rights Reserved. Permission granted for personal and academic use only. Code may not be copied or used without proper credit.
    Downloads: 14 This Week
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  • 20
    This package is a collection of libraries, data processing filters, and UI applications to aid in the analysis and visualization of scientific data stored in the Radar Data Format.
    Downloads: 12 This Week
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  • 21
    The Mars Rover Simulator project is based on the evolutionary robotics paradigm where an artificial agent acquires its skills through the process of artificial evolution. This simulator can be useful to evolve neural network controllers for the rover
    Downloads: 11 This Week
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  • 22
    lin_guider
    Lin-guider is an astronomical autoguiding program for Linux. It supports Philips, Logitech, uvc webcams, QHY5, QHY6, DSI2PRO, QHY5L-II-M, QHY5L-II-C, QHY5-II, ATIK, Starlight Xpress, ZWO ASI astrocams for video and FTDI chip-based, parallel port-based (LPT), GPIO-based, GPUSB devices, Nexstar-protocol based and QHY5, QHY6, QHY5L-II-M, QHY5L-II-C, QHY5-II, ATIK, Starlight Xpress, ZWO ASI astrocams for pulse guiding. Starlight Xpress ltd. is helping this project http://www.sxccd.com/
    Downloads: 2 This Week
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  • 23
    zodiac

    zodiac

    Astrology software for desktop

    Modern, nice software for astrologers. Contains different views of horoscope: classical chart, planets view and plain text. Provides detail information about each element of horoscope. Uses 9 house systems, over 40 aspects for horoscope calculation, tropical and sidereal sign and much more.
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    Downloads: 9 This Week
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  • 24
    Telescope mirror surface error analysis from interferograms. Includes 3D solid model, color Contour plot, quality metrics, and surface profile.
    Downloads: 7 This Week
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  • 25
    AudeLA
    AudeLA is a TCL extension aimed at providing amateur astronomers with image processing, telescope controling, ccd camera driving, and various astronomical algorithms. Web site : https://sourceforge.net/p/audela/wiki/fr_accueil Web site : https://sourceforge.net/p/audela/wiki/en_welcome
    Downloads: 5 This Week
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