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: 2,417 This Week
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    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: 1,028 This Week
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  • 3
    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: 920 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: 178 This Week
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  • 5
    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.
    Downloads: 84 This Week
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  • 6
    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: 120 This Week
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  • 7
    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: 72 This Week
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  • 8
    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: 21 This Week
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  • 9
    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: 27 This Week
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  • 10

    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: 35 This Week
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  • 11
    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: 17 This Week
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  • 12
    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.
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    Downloads: 11 This Week
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  • 13
    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: 18 This Week
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  • 14

    cccd

    Simple astronomical CCD controller

    This program supports TSNK-lab ICX285AL cameras, QHY5, QHY6, QHY9, QHY8L, QHY10, DSI2PRO, DSLR. It works with Mono images of 8, 12, 16 bits and RGB images of 24, 48 bits. Photo and video modes can be used. Histogram control of preview is available. There are two modes of capture: single frame mode and series.
    Downloads: 16 This Week
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  • 15
    Solar Model

    Solar Model

    Model of the Solar System

    The Solar Model is real time modeling of solar system. It allows user to navigate in space, to control time counting (speed-up time flow) and estimate movement of space bodies, bind camera to space objects (for example, from Moon on Earth in real time).
    Downloads: 9 This Week
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  • 16

    Hammurabi Code

    Astrophysical magnetic fields simulator

    Hammurabi is a HEALPix-based tool for simulating observables such as polarized synchrotron and thermal dust emission from models of physical inputs such as magnetic fields, dust and electron distributions, etc. It is a modular C++ framework into which you can add your own models easily and then use it to perform the line-of-sight integration to compute the observables. See the wiki for installation and usage information. Please cite the original Waelkens et al. (2009) paper if you use hammurabi. This version of Hammurabi is deprecated and is no longer being supported. A new and improved version of Hammurabi (dubbed 'X') is available at : https://bitbucket.org/hammurabicode/hamx
    Downloads: 21 This Week
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  • 17
    ASIStudio

    ASIStudio

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

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    Downloads: 20 This Week
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  • 18
    nuSolve

    nuSolve

    Geodetic VLBI data analysis software.

    Downloads: 17 This Week
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  • 19
    wxEphe

    wxEphe

    Astronomical Ephemeris

    wxEphe displays Astronomical Ephemeris for The Sun, The Moon, and solar system planets, given date and observer's location.
    Downloads: 17 This Week
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  • 20

    astroDevice

    Software platform for the control of astronomical instruments.

    astroDevice is a software platform for the control of astronomical instruments (telescope mount, filter wheel, focuser and CCD) through a single interface. This platform manages any astronomical device through plug-ins. It can manage multiple devices of same type (eg two telescope mounts). astroDevice is an alternative to ASCOM and INDI by providing a common interface between each device type and astronomy software such as Starry Night, KStars, Skychart and Stellarium. The platform is based on a client-server architecture to provide the ability to control the astronomical devices remotely.
    Downloads: 15 This Week
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  • 21
    EXTREMA is an interactive program with publication quality graphics and mathematical analysis capabilities. EXTREMA can be GUI and/or command driven. The command language includes conditional branching, looping and subroutine calling constructs.
    Downloads: 8 This Week
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  • 22
    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: 4 This Week
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  • 23
    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! 🔗 New GitHub Repository: 👉 https://github.com/10thTeeAstronomy/DarkLight_CoverCalibrator © 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: 13 This Week
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  • 24

    galprop

    Cosmic-ray propagation and emission processes

    Software for cosmic-ray propagation, gamma-rays, synchrotron. Current version (r2766) includes * accurate propagation scheme * polarized synchrotron * free-free emission and absorption * new convection models * anisotropic diffusion * primary positrons * free-escape boundary conditions * new hadronic gamma-ray production models * new injection spectral breaks * upwards compatible with latest HEALPix * improved HEALPix skymap format * full reference output for a sample run * deuterium production by pp fusion * JF12 B-field * hadronic losses Full details in the Explanatory Supplement and README. Now at https://gitlab.mpcdf.mpg.de/aws/galprop Older versions, datasets etc: http://galprop.stanford.edu. See also http://www.mpe.mpg.de/~aws/propagate.html https://sourceforge.net/projects/galplot http://sourceforge.net/projects/galpropskymapco https://sourceforge.net/projects/gcrconvert https://sourceforge.net/projects/galpropsynchrotron synchrotron routines.
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    Downloads: 7 This Week
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  • 25
    DSPSR is a high-performance, object-oriented, digital signal processing library for radio pulsar astronomy. It implements an extensive range of algorithms and features, and can read data from most observatories, instruments, and file formats.
    Downloads: 12 This Week
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