Open Source C Astronomy Software - Page 2

SExtractor (Source-Extractor) is a program that builds a catalogue of objects from an astronomical image. It is particularly oriented towards reduction of large scale galaxy-survey data, but it also performs well on moderately crowded star fields.

AstroCTC (Astronomy CCD in Telescope Capture) is an application designed for video and image capture of the Planets and the Moon. A suitable astronomy or modified webcam will give the best results, however it will work with most webcams. The camera driver must be V4L2 compliant. Numerous video and image formats are available, however FITS image support is mostly basic and should only be used by those familiar with it. AstroCTC is intended for use with Linux only. While AstroCTC is primarily designed for use in astronomy, it can also serve as a general webcam program. The sample images shown were captured using a Meade LX90 8" and a Celestron NexImage camera.

Control Applications for Astronomical CCD Cameras

A high performance visualization tool for stars and particles able to run on Beowulfs. Rendering step is implemented separately and optimized for SSE, compatible with OpenGL. Navigation mechanism with quaternions. Ten color maps, sobel contour detect

Univerx, a Solar System simulator in OpenGL 3D to show planet's translation and rotation. Includes phisical simulation of orbital movement, textured and lighted planet surfaces and customizable interactive view of the model.

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.

Nightsky is a very basic rendering of the stars in the sky for devices that aren't powerful enough to run Stellarium

ACRASH is an open implementation of the CRASH Monte-Carlo continuum radiative transfer scheme presented in Ciardi et al. 2001 and Maselli et al. 2003. This code solves the radiative transfer equation for any geometry in 3D using a Monte-Carlo scheme.

Astro Info is a multi-lingual astronomical ephemeris for the PalmOS that provides data for our solar system and other objects. If you wish to get involved, please download a copy of the source code from CVS.

Arduino al/az mount controller based on lx200 protocol.

Program to calculate Easter date for any year. It can also display palm Sunday, Ash Wedenesday, Lent and other dates. In the future, it will be a complete holiday calendar.

The GPU-BH tree solver is a FLASH4 module to calculate the gravitational potential using a CUDA device.

The long term goal is to create an Elite or Frontier style space trading game. It is based on Chris Laurel`s Celestia, MySQL, Lua, plib and freeglut.

PMViewer is a Visualization tool for Astrophysical N-Body and Hydro Simulations. GADGET-2 data support.With/Without periodical boundary conditions.Snapshot of scene in PPM and GIF formats.Flying in 3D space. Active/Passive Stereo 3D support.

SAGECal is a very fast, memory efficient and GPU accelerated radio interferometric calibration program. It can handle all source models including points, Gaussians and Shapelets. It can calibrate along hundreds of directions without running out of memory in almost real time. Intel Xeon Phi acceleration is also available. Distributed calibration using MPI and consensus optimization is enabled. Also tools to build/restore sky models are included.

*nix Sidereal Clock Application

cvastroalign is a program that loads a video sequence, aligns and stacks the selected frames obtaining an image as result of this process..

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.

Fixed width data files are probably the most annoying data to import into database. This utility allows user to insert user-defined column separators into user-defided positions of flat file table given in fixed-width format. I am using this utility to import astronomical catalogs provided as flat tables at CDS ftp-server into postgresql; Build: $ make all [cc={icc|gcc}] Install: $ make install [prefix=/path/to/your/bin/directory] Example of usage: $ gzip -dc table.dat.gz | fw2csv --stops=4,10,11,20,30,36 -d '|' -header 1 | psql wsdb -c "copy mytable from stdin with csv delimiter '|'" For the list of available options call $ fw2csv --help

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).

Videoguide allows you to correct star position in case of bad guiding system of telescope. Here is software for videoguide, hardware part consists of PIC-ruled step motors, which tilt a glass plate, correcting by this tilt position of a star or other object. The guiding object is selected by operator in a part of video from gude's CCD-camera. Selected area can be preprocessing by wavelet-filter or median filter and/or histogram equalisation.

AEPHEM is an astronomical ephemeris and reduction C library. It is compatible with JPL ephemerides. It has routines for the standard astrometric reductions, conversions between different time standards and transformations between coordinate systems.

A framework of drivers on which generic astronomical applications can be built.

Astronomical photographs preprocessing software

The Automated Parameter Estimation and Model Selection Toolkit is a fast, parallelized MCMC engine written in C for Bayesian inference (parameter estimation and model selection).