162 projects tagged "Astronomy"

Download Website Updated 09 Jul 2006 TerraJ

Pop 18.08
Vit 1.00

TerraJ is a Java port of fractal terrain and simulated solar system generation programs. The porting has included extensive refactoring, the creation of a documented API to enable reuse of parts in other programs, and extensions such as new Swing user interfaces. Full javadoc for the classes in the project is available.

No download Website Updated 27 Jul 2010 The Frink Language

Pop 344.78
Vit 18.72

Frink is a calculating tool and programming language designed to help you in the real world. It tracks units of measurement throughout all calculations and ensures that answers are correct. It converts between systems of measurement, and has a huge library of physical data. It is both a simple calculator for quick calculations and a full-fledged programming language for large tasks. It draws high-quality graphics, handles conversions between time zones, currencies, and historical values of the U.S. dollar and the British pound, translates between several languages, does date/time math, and more.

No download Website Updated 14 Jul 2003 Two Dimensional Graph

Pop 20.30
Vit 63.17

graph2d generates images of two dimensional graphs. It can be used to draw graphs of functions, taking some image parameters like the type, sizes, left, right, top, bottom borders, scales for x and y axis, legends, title, and two arrays and draws the graph of a function.

Download No website Updated 06 Sep 2005 UFOClock

Pop 10.58
Vit 56.62

UFOClock draws an astronomical clock. From it you can read the time of day, phase of the lunar month, ratio of day to night, time until a solstice or equinox, and time until the end or beginning of twilight. The time of day depends on your location on the surface of the Earth, which you can enter on the command line or in a dotfile in your home directory. Location can be given as latitude/longitude or ZIP code. It is called UFO clock because it sort of looks like crop circles. It is based on Sundial by George Williams. It requires GLUT installed to run and the NOVAS library to build.

Download Website Updated 04 Aug 2005 Virtual Observatory Quantity Data Model

Pop 23.32
Vit 1.00

The Virtual Observatory Quantity Data Model (VOQDM) package is a "thing"-based data model for use with scientific and mathematical data in the International Virtual Observatory (IVO). It is built upon the QML (Quantity Model Language) package and, in general terms, enables fast, convenient serialization/deserialization/manipulation of Quantity-based objects and documents. An important specific application for this package is to enable the I/O of VO-catalog-based data.

Download Website Updated 30 Jul 2012 WCSLIB

Pop 29.63
Vit 1.00

WCSLIB is a C library, supplied with a full set of Fortran wrappers, which implements the "World Coordinate System" (WCS) standard in FITS (Flexible Image Transport System). It also includes a PGPLOT-based routine, PGSBOX, for drawing general curvilinear coordinate graticules, and a number of utility programs. The FITS "World Coordinate System" (WCS) convention defines keywords and usage which provide descriptions of astronomical coordinate systems in a FITS image header.

Download Website Updated 07 Jan 2007 XEphem

Pop 101.73
Vit 3.52

XEphem is a complete astronomy program.

Download Website Updated 28 Jun 2003 XGravity

Pop 15.43
Vit 69.10

Xgravity is a program for the simulation of 3D gravitational motion of n-bodies. It reads a file with the current state of the bodies, and displays the motion. It features a nice isometric perspective, Red-Green stereographics, and a stereographic perspective which allows you to see the trace in "real" 3D. There is a GTK GUI interface in development, which gives you the ability to perform basic operations with the system, like modifing objects, rotating, eliminating drift, and launching a simulation.

Download Website Updated 13 May 2009 Xplanet

Pop 185.58
Vit 9.89

Xplanet was inspired by Xearth, which renders an image of the earth into the X root window. All of the major planets and most satellites can be drawn, similar to JPL's Solar System Simulator. A number of different map projections are also supported, including azimuthal, Mercator, Mollweide, orthographic, and rectangular.

Download Website Updated 22 Dec 2003 Xplns

Pop 43.63
Vit 2.41

Xplns is a free astronomy simulation software written specifically for Unix. It reproduces real starry sky on your display of X Window System. It calculates the position of many celestial objects accurately. You can enjoy the past and future sky on the desk top as if you have traveled all around the world.


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An LDAP-enabled mailing list access policy daemon for Postfix.