PP3 is
free software
Free software, libre software, libreware sometimes known as freedom-respecting software is computer software distributed open-source license, under terms that allow users to run the software for any purpose as well as to study, change, distribut ...
that produces
sky charts, focussing on high quality graphics and typography. It is distributed a license based on the
MIT License
The MIT License is a permissive software license originating at the Massachusetts Institute of Technology (MIT) in the late 1980s. As a permissive license, it puts very few restrictions on reuse and therefore has high license compatibility.
Unl ...
, but with this restriction added:
Sky charts are produced as
LaTeX
Latex is an emulsion (stable dispersion) of polymer microparticles in water. Latices are found in nature, but synthetic latices are common as well.
In nature, latex is found as a wikt:milky, milky fluid, which is present in 10% of all floweri ...
files, so an installation of LaTeX and
Ghostscript
Ghostscript is a suite of software based on an interpreter for Adobe Systems' PostScript and Portable Document Format (PDF) page description languages. Its main purposes are the rasterization of documents in these language,, the display or prin ...
is required to obtain results in
PostScript
PostScript (PS) is a page description language and dynamically typed, stack-based programming language. It is most commonly used in the electronic publishing and desktop publishing realm, but as a Turing complete programming language, it c ...
or
PDF
Portable document format (PDF), standardized as ISO 32000, is a file format developed by Adobe Inc., Adobe in 1992 to present documents, including text formatting and images, in a manner independent of application software, computer hardware, ...
formats. Knowledge of command line syntax for these packages is however not required, as PP3 can run the conversions automatically.
Initially
Wikipedia
Wikipedia is a free content, free Online content, online encyclopedia that is written and maintained by a community of volunteers, known as Wikipedians, through open collaboration and the wiki software MediaWiki. Founded by Jimmy Wales and La ...
's own star charts were produced by PP3. PP3 generates maps in the
azimuthal equidistant projection
The azimuthal equidistant projection is an azimuthal map projection. It has the useful properties that all points on the map are at proportionally correct distances from the center point, and that all points on the map are at the correct azimuth ...
.
''footnote 5:'' "the equidistant azimuthal projection"
/ref>
See also
*Space flight simulation game
Space flight simulation is a genre of flight simulator video games that lets players experience space flight to varying degrees of realism. Common mechanics include space exploration, space trade and space combat.
Overview
Some games in the ge ...
**List of space flight simulation games
A list is a Set (mathematics), set of discrete items of information collected and set forth in some format for utility, entertainment, or other purposes. A list may be memorialized in any number of ways, including existing only in the mind of t ...
*Planetarium software
Planetarium software is application software that allows a user to simulate the celestial sphere at any time of day, especially at night, on a computer. Such applications can be as rudimentary as displaying a star chart or sky map for a specific ...
*List of observatory software
The following is a list of astronomical observatory software.
Commercial software
* MaximDL
Non-commercial software
{{columns-list, colwidth=30em,
* Aladin Sky Atlas
* Astropy
* Cartes du Ciel
* Celestia
* Google Sky
* Hallo Northern Sky
* I ...
References
External links
Official website
*
Free astronomy software
Science software for Windows
Free software programmed in C++
{{Astronomy-stub