Open Source Astronomy Software - Page 23
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cplmm is a library of C++ wrappers for the ESO (European Southern Observatory) Common Pipeline Library (CPL).
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distlink
Library to compute distance between elliptic orbits (MOID)
This C++ library allows to compute the Minimal Orbital Intersection Distance (MOID) between two elliptic confocal orbits using the method by Kholshevnikov & Vassiliev (1999), Cel. Mech. Dyn. Astr., 75, 75. The implementation of the method is described in (Baluev & Mikryukov 2019), Astronomy & Computing, 27, 11. It employs numeric error control and deals carefully with nearly degenerate cases (like almost circular and almost coplanar orbits). Library also includes auxiliary functions. The code was developed and tested with GCC, though it should be usable with any other C++-compatible compiler. See README. -
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ephem68k is an astronomy software the TI-92 and TI Voyage 200 CAS systems. It calculates astronomical data like julian date, local sidereal time, full/new moons, ephemerides of fixed and solar objects and more. ephem68k is based on ephem 4.29 code.
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ephemeritis is to be a library for ephemeris calculations. When complete, it will provide an API for calculating the positions, the rise and set times, and related information about stars, planets, the Moon, and other astronomical objects.
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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.
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ezRA
ezRA - Easy Radio Astronomy
For folks starting to explore radio astronomy, ezRA - Easy Radio Astronomy Free 1420 MHz Galactic hydrogen data collection and analysis Open source Windows and Linux https://github.com/tedcline/ezRA -
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gMarsClock is a clock applet for the GNOME panel that displays the current time on Mars. It is intended for Martian colonists (or those who wish they were).
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galaxie chung is a galaxy numerical simulation experiment i have written in fast compiled freebasic for calculation and openGL for displaying. the galaxy is modelized as a gaz of stars submited to gravitation. Can run on an ordinary pc notebook.
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galaxyPhotometrySimulator
Set of scripts to perform galaxy photometry simulations.
This project contains a set of python scripts to perform SExtractor galaxy photometry simulations. It uses Galfit to simulate the galaxies and SExtractor for the photometry. It is defined to be used also with distributed computing and with Condor. No very well documented yet. Developed for my PhD. -
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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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galprop_propel
GALPROP update for accurate propagation calculation
The GALPROP program (http://galprop.stanford.edu) computes cosmic-ray propagation numerically. To obtain manifestly accurate solutions an explicit method is now available to replace the Crank-Nicolson operator-splitting method. This can be implemented in the public version of GALPROP with the update provided here. Instructions: replace the four files propel.cc, propel_diagnostics, Galdef.cc and Galdef.h and rebuild the executable. Add solution_method and solution_convergence to the galdef parameter file. A test GALDEF file with these parameters is galdef_54_reltest09; the diagnostics document the accuracy of the solution. A full explanation is given in the GALPROP Explanatory Supplement http://www.mpe.mpg.de/~aws/galprop_explanatory_supplement.pdf Thanks to Deepak Khurana for requesting and testing this update. Now replaced by this project: http://sourceforge.net/projects/galprop where further updates can be found. -
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galprop_skymap_convert
Convert galprop skymaps to standard healpix
A routine for converting GALPROP-generated HealPix skymaps to a compatible format which can be plotted by Aladin (v7), available from CDS at http://aladin.u-strasbg.fr. This allows free rotation of the sphere, avoiding the distortions of Aitoff and other projections often used. It is a very practical way to view and prepare skymap plots of GALPROP output. GALPROP outputs a spectrum per HealPix pixel, while Aladin requires each energy to be stored as a column. A conversion is required to make GALPROP skymaps viewable in Aladin. This program performs this conversion, outputs both the original energy bins and energy-integrated spectra, and in addition convolves with a user-defined Gaussian both in energy bins and energy-integrated. Also outputs the spherical harmonic decomposition as HealPix, per energy bin. There is also an option to divide by a second HealPix file, for example to give intensity if file 1 is counts and file 2 is exposure, to give intensity. Now also converts back. -
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gcr_convert
converts cosmic-ray files from GALPROP for viewing / plotting.
The GALPROP program (http://galprop.stanford.edu) computes cosmic-ray propagation in the Galaxy, in 2D or 3D. The ouput cosmic-ray distribution is in the form of FITS files which however are not convenient for viewing or plotting with the standard ftools program fv, since the files have 4 or 5 dimensional arrays (due to the momentum and species axes) while fv handles only 3 dimensional arrays. This program converts to fv-compatible FITS files, either from 2D to (R,z) or from 3D to (x,z) at y=0 or (x,y) at z=0, in each case for a chosen cosmic-ray species. The third axis is momentum in each case. The distribution can be viewed with fv as a colour image, contoured, output to a file etc. The program is stand-alone and requires only the cfitsio library to be installed. Build instructions are in the program header. The FITS.cc/FITS.h class used provides simple convenient access to image data, useful also for other projects. For fv and cfitsio see http://heasarc.gsfc.nasa.gov/fitsio -
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GCX provides a complete set of data-reduction functions for CCD photometry, accessible both from a GUI and the command line. It also controls CCD cameras and telescopes, and implements automatic observation scripting.
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giza
A scientific plotting library for C/Fortran built on cairo
A 2D scientific plotting library built on cairo. Provides uniform output to pdf, ps, png and X-Windows. Written in C with no dependencies (other than cairo) as a direct replacement for PGPLOT. -
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glSatellite Demo
Technological demo of OpenGL ES 2 Android NDK
Technological demo of OpenGL ES 2 for Android platform. It reads public NORAD satellite database and shows the satellite positions and altitude related to Earth in the form of beams (the height of the beam represents the relative altitude). NOTE: The project has been moved to GitHub: https://github.com/nuald/glSatellite-Demo The old one stays here just for the historical reasons. The 3D features present: - OpenGL ES 2; - rotating, multi-touch zooming and moving the globe; - stars on a fixed background; - each satellite is represented by a beam with a unique color; - identifying the corresponding satellite if a beam has been tapped (based on color picking method). Additionally to 3D features presented the application is: - using NDK with C++11 features compiled by LLVM clang; - mixing Java views with OpenGL views (Java is used for settings activity, information and ads panels); - using Android custom message queue to send asynchronous messages from Java to JNI -
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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.
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Graphing System with a C language interface. Astrology program as sample, many others. Uses Qt to do the actual graphics.
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MPI/C++ code to generate initial conditions for cosmological simulations using multiscale gaussian random fields, based on Edmund Bertschinger's GRAFIC-2 package. Provides a replacement for both grafic1 and grafic2.
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hadronic gamma rays
gamma rays from hadronic processes in astrophysics
Cosmic-ray hadronic interaction matrices for gamma-ray and other secondaries for an interstellar medium target are available as described in Huang et al. Astroparticle Physics, 27, 429 (2007). These require significant effort in practice to compute emissivities for given input spectra. To supplement these matrices I provide here a C++ class which reads the matrices, interpolates on user-defined particle and gamma-ray energy grids, and computes the gamma-ray emissivity either differential or in user-defined bands. A sample user program is provided which can be edited to provide the required functionality. See also http://sourceforge.net/projects/galprop, which includes more models. -
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hfsad
Hardware, Firmware, Software for Astronomical Devices
This project is a collection of DIY hardware devices aimed at astronomy, together with their firmwares and softwares. At this moment, it contains a PIC based mount motorization, built for an old EQ5-like mount. The firmware implements the Skywatcher protocol. -
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iAstroHub
Automated astrophotography using mobile devices
iAstroHub is: - the world's first solution for mobile astrophotography. A user can interact with all astrophotography devices from any mobile device using a web browser. - developed by Anat Ruangrassamee, Ph.D., Bangkok Thailand. (aruangra at yahoo dot com) See how it works from here: http://www.youtube.com/watch?v=Sncd3j8ipBQ Requirements and supported devices. 1. Autoguider: Orion Starshoot autoguider, QHY5, QHY5-II, QHY5L-II, QHY6 2. DSLR 3. CCD: QHY5,6,8,8L,9,11,12 4. Filter wheel: Starlight Xpress 5. Focuser: Robofocus 6. Flat fielder: Flip-Flat 5. USB serial adapter (PL2303-based) for controlling a mount via a serial port. I recommend ATEN UC232A. 6. Powered USB hub 7. TRONSMART MK808 (with RK901 wifi) or MK808B (with RK903 wifi). I got it from geekbuying.com. Or any RK3066 mini PC stick + an external Ralink5370 usb wifi adapter. 8. Class-10 micro SD card (at least 8GB). If you have any question, discuss here ... -
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Tokenizer and translator for the IDL language, principally used with the IDL environment from ITTVis and GDL.
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indi-mount-tools
Small personal tools to control indi mounts
This project gathers small tools aimed at controlling astronomical mounts driven with the INDI protocol. As of now, there is an "handcontroller" GUI application (Pad), which includes the use of a joypad device, and a helper for polar aligning an equatorial mount (Polar Align). Besides a small catalog browser/reader (Catalogs), and a more specific Align Viewer GUI application aimed at displaying current alignment data for the EQMod INDI driver.