Page of my main project. A wiki page explaining in detail how to use the source code of JPARSEC is located here.
For practicality the JPARSEC library is distributed inside an application that acts as a manager to install other programs (models) developed with it. The manager allows simple, automatic installation of programs and updates, so it is strongly recommended. To install the whole package follow these steps:
LINUX Users: you will need the wget utility and at least java 1.5 installed in your system. Open a console, type the following two commands (or download the installation script http://conga.oan.es/~alonso/jparsec/installJPARSEC.sh), and then follow the instructions of the installer. If you get an error like java.lang.UnsupportedClassVersionError when typing the second command, that means you don't have java 1.5. Check the version with java -version.
wget http://conga.oan.es/~alonso/jparsec/install.jar java -jar install.jar
WINDOWS Users: download the previous file http://conga.oan.es/~alonso/jparsec/install.jar by hand and double clic on it (remember that java 1.5 is required). Please note that certain capabilities of the library are only available for Linux systems, and Windows is not supported. I can only say that it seems that most of the things work well in XP.
The previous command will launch an installation assistant that will guide you in the process of installing everything. The only step that should be done carefully is the JRE (Java Runtime Environment) selection, that depends on the operating system. You can also install no JRE if you know what you are doing and you have a JRE 1.6 already installed in your system. After installing JPARSEC please read the Readme.txt file. The only possible installation problem known comes when downloading some huge .jar files in systems with less than 1 GB of RAM. The solution, as explained in the manager help system, is to add '-Xmx100M -Xms100M' just after the command 'java' in the .sh or .bat files. This has already been done, but could fail in systems with less than 1 GB.
MAC Users: It seems that everything works fine. First download http://conga.oan.es/~alonso/jparsec/install.jar by hand and execute the installer with java -jar install.jar. Select no JRE to install in the assistant and (after the installation) use the script for Mac systems.
The programs have a help menu with all necessary information to use them. Available programs in production phase are:
Planned programs for 2013 are:
ClearSKY application is currently in intense development status. Anyway, it is possible to install a reduced version of JPARSEC and the manager to use only the ClearSKY program, maintaining all the features of the manager like automatic installation of updates. If you follow the development process and want to report some comments, they will be welcomed.
wget http://conga.oan.es/~alonso/jparsec/installClearSKY.jar java -jar installClearSKY.jar
JPARSEC is a Java package of astronomical resources for standard ephemerides calculations. It is written in Java, which is by far the most advanced programming language in these years, and response to a demand in the astronomical community for a modern tool for astronomical ephemerides and model calculations. In this way, a great effort has been made to create the most powerful and modern tool for astronomical calculations, with maximum capabilities and accuracy. This tool is suitable for developing free software that requires maximum accuracy in ephemerides calculations, whether by using JPL DE4xx ephemeris or not.
The main object of this package is to provide developers with an adequate library to create new astronomical applications. JPARSEC can also be used in it's own, even by people with a limited knowledge of Java, since only a few lines of code are required to test any of the features available. This package is the result of seven years of intense programming development (starting as a doctorate student), and it is based on more than 10 previous years of experience in the development of astronomical applications.
JPARSEC has a lot of unique features:
JPARSEC is distributed under GPL license, so it can only be used in a free software project (without asking me for permission). Latest source code for JPARSEC package is automatically downloaded when you install it using the instructions provided above. Source code is located at file jparsec.jar inside /lib subdirectory. It is a standard .zip compressed file. Source code for the tools created by means of JPARSEC library is provided in the .jar file of the corresponding tool, installed in the corresponding directory inside the main directory of the JPARSEC package.
Anyway, you can always download the latest source code for JPARSEC library (the core of everything) in .zip format at http://conga.oan.es/~alonso/jparsec/lib/jparsec.jar. The javadoc documentation is available at http://conga.oan.es/~alonso/jparsec/doc.zip (and online at http://conga.oan.es/~alonso/jparsec/doc/index.html), and there are also some examples available to test the library at http://conga.oan.es/~alonso/jparsec/JPARSEC_examples.zip, but they will require to include some dependencies in the classpath to make them work. You can download those dependencies by hand at http://conga.oan.es/~alonso/jparsec/lib/, or just install the whole JPARSEC package following the instructions provided above.
Some of these libraries are used unmodified, some were modified, and in others I just took some pieces of code.
|AstroLib||Marks Huss||Free for non-comercial purposes|
|JSky||Allan Brighton||GNU (GPL)|
|Base64Coder||Christian d'Heureuse||GPL among others|
|2D Graph||Leigh Brookshaw||GNU (GPL)|
|VISAD||Bill Hibbard and others||GNU/LGPL|
|JFreeChart (*)||David Gilbert||LGPL|
|JMathPlot (*)||Yann Richet||BSD|
|cds.astro (*)||François Ochsenbein||Free for non-comercial purposes|
|iText||iText Software Corp||GNU (GPL)|
|jna||Timothy Wall ?||LGPL|
|SGT (*)||Donald W. Denbo||Free|
|JMathText||Kurt Vermeulen||GNU (GPL)|
|nom.tam.fits||Tom McGlynn||GNU ?|
|javaSWF||David N. Main||Free|
|PulpCore||Interactive Pulp, LLC||BSD|
|JBox2d||Erin Catto and others||zlib|
|ditaa (*)||Stathis Sideris||GPL|
|flanagan||Michael Thomas Flanagan||Free for non-comercial|
|SurfacePlotter (*)||Eric Aro, Yanto Suryono||LGPL|
|nrjavaserial||Neuron Robotics||RXTX + LGPL|
|MigLayout||MiG InfoCom||BSD + GPL|
(*) Library was modified to add additional features, source code is included in the .jar file.
Current version of JPARSEC is 1.100, released on November 11, 2013. It is mainly a bug fix release when exporting multiple renderings consecutively to PDF, and an important step forward in the Android project. Detailed release notes are available in class jparsec.util.Version. If you find JPARSEC useful and you decide to use it in your own project, feedback will be appreciated.
To install JPARSEC source code in Eclipse you only have to create a new project and include as source the JPARSEC examples available at http://conga.oan.es/~alonso/jparsec/JPARSEC_examples.zip. To solve compilation problems download http://conga.oan.es/~alonso/jparsec/lib/jparsec.jar and the rest of .jar files available at http://conga.oan.es/~alonso/jparsec/lib/, and add them to the dependencies. It is easier to install the set of tools (see above) to automatically download all dependencies. Currently the only .jar file not installed with the set of tools is jpl_ephem.jar.
The jparsec.jar file includes source code and javadoc, so you should have everything you need to start developing with JPARSEC. A detailed wiki page is available to help new users.
JPARSEC also supports sky and planetary rendering on Android platform. A basic project for Android containing all required files is available at http://conga.oan.es/~alonso/jparsec/jparsecAndroid.zip. This project contains a reduced version of the library for Android, providing support only for ephemerides and sky/planetary renderings (using a reduced version of the set of planetary textures). The corresponding version of this library for Java desktop platform is provided at http://conga.oan.es/~alonso/jparsec/jparsecEphemOnly.zip. The only dependency for ephemerides is the file orbital_elements.jar (ephemerides for comets, asteroids, and artificial satellites). It is already included in the downloadable project, but should be updated twice a year from the link provided. For planets and satellites is not required. You can also test in your android device the basic application by installing the .apk package.
I was recently asked about the use of a GPL licensed software, like the JPARSEC library, in a commercial product. Here is my answer.
My library is GPL code, and the use of GPL code in commercial applications or services is a complex matter. Strictly speaking, you can do it, but anything you do with GPL code must become also GPL code, with the same license, and must be freely available for downloading, as happens with my library. This means that in case you offer something that you think may worth some money (or not, it doesn't matter), me and anybody must be allowed to download/distribute your derived work for free, possibly offering later the same or better services with no restriction at all (even free of charge). i.e. you take something from the community and you also offer something that can be used freely. As you can imagine, to earn money in this way is very hard, but some companies succeed on this (for some time). This is why GPL code is (almost) always incompatible with commercial products. The only exception I would emphasize is the companies that offer support services for GPL software in the Linux operating system. To earn money you should develope your code from scratch, maintain your source closed (without distributing it, something not allowed in GPL'ed code), and show clients why what you offer is better than the software/services they can obtain from other competitors. As with GPL it is fine, moral, and legal, but also hard, in fact impossible if you can't develope competitive astronomical software.
In a more personal view, JPARSEC is the result of many years or work, literally thousands of hours. I offer it so that astronomers, teachers, engineers, and free software developers can use it for their research work and extend it with new ideas, but I don't want to see it inside some kind of commercial product.
These general rules can have exceptions if I decide to give permission in a given situation, for instance in an interesting collaboration or in case just a very little part of my work is useful. What should be clear is that JPARSEC cannot be used in any way in a closed project and should not be used in any kind of place with security risks (defense, nuclear facilities, or similar).
Here is the provisional list of references (publications, books, web pages) used in the development of JPARSEC, ordered by themes, and inevitably incomplete.
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G. H. Kaplan, “The IAU Resolutions on Astronomical Reference Systems, Time Scales, and Earth Rotation Models”, astro-ph/0602086 = USNO Circular 179 (2006).
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Seidelmann et al. 2007, Report of the IAU/IAG Working Group on Cartographic Coordinates and Rotation Elements: 2006, Celestial Mechanics and Dynamical Astronomy, 98-3, pp. 155-180.
Archinal et al. 2011, Report of the IAU Working Group on Cartographic Coordinates and Rotation Elements: 2009, Celestial Mechanics and Dynamical Astronomy, 109-2, pp. 101-135.
Archinal et al. 2011, Celestial Mechanics and Dynamical Astronomy, 110-4, pp. 401-403.
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Lainey et al. Astronomy and Astrophysics 427, 371 (2004).
JPL satellite ephemeris MAR033, JUP172/3, JUP219/241, URA039, URA066/7/8, NEP016/050/054, PLU013, R. A. Jacobson and others, http://ssd.jpl.nasa.gov/?sat_elem
Lainey V., Dehant V. and Paetzold M., “First numerical ephemerides of the Martian moons”, A&A 465 1075-1084 (2007).
Eckhardt, D.H., “Theory of the Libration of the Moon”, Moon and Planets 25, 3 (1981)
Pierre Bretagnon and Jean-Louis Simon, “Planetary Programs and Tables”, Willman-Bell, 1986.
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Standish E. M., “JPL Planetary and Lunar Ephemerides DE405/LE405”, Interoffice Memorandum 312F, 98 - 048”, Jet Propulsion Laboratory (1998).
Standish E. M., “JPL Planetary Ephemerides DE414”, Interoffice Memorandum 343R, 06 - 002”, Jet Propulsion Laboratory (2006).
Meeus's Astronomical Algorithms and Elements of solar eclipses 1951-2200.
EmapWin Ver. 2.12 (2012.11.17), downloadable from http://www.kotenmon.com/cal/emapwin_eng.htm. Bessel paramaters used in JPARSEC kindly supplied by Shinobu Takesako, author of EmapWin.
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C. F. Bohren, D. R. Huffman, Absorption and Scattering of Light by Small Particles, John Wiley & Sons, New York, 1983.
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Seidelmann, P. K. , Kovalesky, J., A&A 392, 341-351 (2002).
Chapront, Chapront-Touze and Francou, A&A 387, 700 (2002).
M. Cohen et al, “Spectral Irradiance Calibration in the Infrared. XIV. The Absolute Calibration of 2MASS”, AJ 126, 1090 (2003).
Hilton and Hohenkerk, A&A 413, 765-770 (2004).
Predehl et al. 1995.
Draine, ApJ 636, 1114-1120 (2006).
Van der Tak, F.F.S. et al., A&A 468, 627-635 (2007), RADEX software.
Chapront et al. 1988, Williams et al. 2008, Seidelmann et al. 2007, Konopliv et al. 2001.
Jia-Cheng Liu et al. 2010 (see http://arxiv.org/abs/1010.3773).
Van den Bergh, G. - Periodicity and Variation of Solar (and Lunar) eclipses (H.D.Tjeenk Willink & Zoon, Harlem, 1955)
Ruckdeschel, F. R., “Basic Scientific Subroutines”, Mc-Graw Hill 1982.
Computation of Special Functions, by Shanjie Zhang and Jianming Jin.
Roman, N. G., “Identification of a Constellation from a Position”, Pub. Astron. Soc. Pac. 99, 695, (1987).
Danby, “The Solution of Kepler's Equation”, Celestial Mechanics 31, 95-107 (1983), and Celestial Mechanics 40, 303-312 (1987).
Davenhall, A. C., Constellation Boundary Data, http://vizier.cfa.harvard.edu/viz-bin/ftp-index?VI/49, 1989.
Montenbruck, O., “Practical Ephemeris Calculations”, 1989.
P. Ramon Escobal, “Methods of Orbit Determination”, 1965.
Java for Engineers and Scientists, S. J. Chapman.
BSC5 Catalogue, 5th revised edition, Hoffleit et al. 1991.
IRS Catalogue, Corbin et al. 1991.
Seidelmann, P. K., The Explanatory Supplement to the Astronomical Almanac, 1992.
Cohen, E. R., Taylor, B. N., “The Fundamental Physical Constants”, Physics Today, August 1997.
Hipparcos Catalogue, ESA, 1997.
Brad Schaefer, “To the Visual Limits”, Sky & Telescope, May 1998, 57-60.
Dershowitz, N., Reingold, E. M., Calendrical Calculations.
UCAC3 Catalog, Zacharias et al. 2009.
FK6 Catalog, Wielen et al. 2000.
Sky2000 Master Catalogue, version 5, Myers et al. 2006. See https://wakata.nascom.nasa.gov/dist/generalProducts/attitude/ATT_SKYMAP.html.
Fourth Catalog of Orbits of Visual Binary Stars, Worley et al. 1983.
Sixth Catalog of Orbits of Visual Binary Stars, Hartkopf et al. 2006 (http://ad.usno.navy.mil/wds/orb6/orb6orbits.txt).
Morrison and Stephenson, “Historical values of the Earth's clock error dT and the calculation of eclipses”, JHA 35, 327 (2004).
Fred Spenak, Jean Meeus, Five Millenium Canon of Solar Eclipses, NASA/TP-2006-214141.
IAU SOFA (Standards Of Fundamental Astronomy), IAU SOFA Review Board (2005).
NOVAS software package, v3.0, USNO (2006) (http://www.usno.navy.mil/USNO/astronomical-applications/software-products/novas).
P. Thévenaz, T. Blu, M. Unser, “Interpolation Revisited,” IEEE Transactions on Medical Imaging, vol. 19, no. 7, pp. 739-758, July 2000.
A. Muñoz Barrutia, T. Blu, M. Unser, “Least-Squares Image Resizing Using Finite Differences,” IEEE Transactions on Image Processing, vol. 10, no. 9, pp. 1365-1378, September 2001.
Math tools by Joseph A. Huwaldt, http://homepage.mac.com/jhuwaldt/java/Packages/MathTools/MathTools.html
Tycho photometry, http://homepage.ntlworld.com/roger.dymock/Tycho Photometry.htm
Fernie, J. D., 1983PASP…95..782F.
“Conversion of Absolute Magnitude to Diameter”, http://cfa-www.harvard.edu/iau/lists/Sizes.html
Daylight saving time in USA in 2007, http://www.microsoft.com/latam/windows/timezone/dst2007.mspx
Christian d'Heureuse, Base64 encoding/decoding, http://www.source-code.biz/base64coder/java/.
Ben Clifford, writing roman numbers, http://www.hawaga.org.uk/java/benno/number/Roman.java.
JPL (http://spec.jpl.nasa.gov/ftp/pub/catalog/), COLOGNE (http://www.astro.uni-koeln.de/site/vorhersagen/catalog/), and Splatalogue (http://splatalogue.net/) databases of molecular spectroscopy.
KStars catalog of constellation lines for different cultures.
Stellarium catalog of deeps sky images and their orientations.
Java libraries jfreechart, astroRuntime, cds, sgt, freehep, jama, nom.tam.fits, astrolib, VISAD, jMathPlot, SkyView, jsch, javax.mail (comm), java3d, ditaa, jzy3d.
FastMath library by Bill Rossi, integrated in Apache Commons Math.
Pieces of code taken from contributions by Steve L. Moshier, Donald W. Denbo, Mark Huss, Bill Gray, Kerry Shetline, Joseph A. Huwaldt, Mark Hale, M. Thomas Flanagan, Vern Raben.
GRS longitude, http://jupos.privat.t-online.de/rGrs.htm
Bulletins for variable stars, http://www.aavso.org/aavso-bulletin
Up-to-date Linear Elements of Close Binaries, J.M. Kreiner, 2004, Acta Astronomica, vol. 54, pp 207-210. See http://www.as.up.krakow.pl/ephem/
Conversion between galactic and equatorial coordinates, Jia-Cheng Liu et al. 2010, http://arxiv.org/abs/1010.3773
SN catalog, http://web.oapd.inaf.it/supern/cat/cat.txt
Milky Way texture by Nick Risinger, http://apod.nasa.gov/apod/ap110519.html.
Orbital elements for comets, asteroides, and transNeptunian objects, http://cfa-www.harvard.edu/iau/Ephemerides/Comets/Soft00Cmt.txt, http://www.cfa.harvard.edu/iau/Ephemerides/Distant/Soft00Distant.txt, http://www.cfa.harvard.edu/iau/Ephemerides/Bright/2007/Soft00Bright.txt
Orbital elements for visual artificial satellites, http://www.tle.info/data/visual.txt
List of observatories, http://www.cfa.harvard.edu/iau/lists/ObsCodes.html
EOP for 1980 and 2000 IAU resolutions, http://hpiers.obspm.fr/iers/eop/eopc04_05/eopc04.62-now, http://hpiers.obspm.fr/iers/eop/eopc04_05/eopc04_IAU2000.62-now
Catalog of solar spots, http://solarscience.msfc.nasa.gov/greenwch/
Principal Component Analysis tutorial, http://www.ce.yildiz.edu.tr/personal/songul/file/1097/principal_components.pdf
Geolocalization of IP, http://ipinfodb.com/ip_query.php?timezone=true
Earth bump map to obtain elevation for a given position, http://www.space-graphics.com/e43_elevation1.htm
List of observatories, http://www.ipa.nw.ru/PAGE/EDITION/RUS/AE/comment.txt
Magnitudes for faint satellites around giant planets, http://www.dtm.ciw.edu/users/sheppard/satellites/
CODATA/NIST Physical constants, http://physics.nist.gov/cuu/Constants/.
Flower, P.J., Astrophys. J. 469, 355 (1996), Pickles (1998), Portinari 2005, Turner 2013.
Services for planetary maps and feature names, Vizier, Siess evolutionary tracks, DSS, SkyView, ADS, http://www.mapaplanet.org/explorer-bin/imageMaker.cgi, http://planetarynames.wr.usgs.gov/jsp/AdvanceSearchPlainText.jsp, http://vizier.u-strasbg.fr/cgi-bin/votable, http://www-astro.ulb.ac.be/Starevol/cgi/hrdfind.cgi and http://www-astro.ulb.ac.be/~siess/index.html, http://archive.stsci.edu/cgi-bin/dss_search, http://skyview.gsfc.nasa.gov/cgi-bin/images, http://skyview.gsfc.nasa.gov/cgi-bin/survey.pl, http://adsabs.harvard.edu/
Catalogs: The 2MASS Point Source Catalogue, Cutri et al. 2003, MSX6C Infrared Point Source Catalog, Egan et al. 2003, Radio emission from stars at 250GHz, Altenhoff et al. 1994, Catalogue of stellar UV fluxes, Thompson et al. 1978, UBVRIJKLMNH Photoelectric Catalogue, Morel et al. 1978, The Tycho-2 main catalogue, Hog et al. 2000, Pre-main-sequence stars observed by IUE with LW cameras, Valenti et al. 2003, 1.4GHz NRAO VLA Sky Survey (NVSS), Condon et al. 1998, DENIS, Fouqué et al. 2000.
PLAN-13 program by James Miller, http://www.amsat.org/amsat/articles/g3ruh/111.html
Feel free to report here any bug, problem, or suggestion you could encounter when installing or using JPARSEC software. Before doing that please be sure that a similar thread has not been opened before. Use the Issues tab at Google Code (http://code.google.com/p/jparseclibrary/issues/list) or the tracker feature of the JPARSEC page at SourceForge: http://sourceforge.net/tracker/?group_id=297414. Of course you can also send your messages to Tomás Alonso Albi.