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Snappy is a compression/decompression library. It does not aim for maximum compression, or compatibility with any other compression library; instead, it aims for very high speeds and reasonable compression. For instance, compared to the fastest mode of zlib, Snappy is an order of magnitude faster for most inputs, but the resulting compressed files are anywhere from 20% to 100% bigger.

Viking is a free/open source program to manage GPS data. You can import and plot tracks, routes and waypoints, show OpenStreetMap, Terraserver, Bing Aerial and other maps in it, download geocaches for an area on the map, make new tracks and waypoints, geotag images, see real-time GPS position, etc.

KStars is a desktop planetarium for KDE. It provides an accurate graphical simulation of the night sky, from any location on Earth, at any date and time. The display includes up to 100 million stars, 13,000 deep-sky objects, all 8 planets, the Sun and Moon, and thousands of comets and asteroids.

Nightfall is an astronomy application for fun, education, and science. It can produce animated views of eclipsing binary stars, calculate synthetic lightcurves and radial velocity curves, and eventually determine the best-fit model for a given set of observational data of an eclipsing binary star system. It is, however, not able to fry your breakfast egg on your harddisk. ;-)

Astro::PAL provides a Perl interface to either the Starlink PAL positional astronomy library. Return values are returned on the stack rather than being modified in place. In addition small utility subroutines are provided that do useful tasks (from the author's point of view) - specifically routines for calculating the Local Sidereal Time.

PyFITS provides an interface to FITS formatted files under the Python scripting language. It is useful for interactive data analysis and for writing analysis scripts in Python using FITS files as either input or output. PyFITS is a development project of the Science Software Branch at the Space Telescope Science Institute.

The SWISS EPHEMERIS is the high precision ephemeris developed by Astrodienst, largely based upon the DE406 ephemeris from NASA's JPL. Developers can license the Ephemeris library.Ephemeris users find 3200 years of read-made printable files of ephemerides, containing 19'200 print pages in PDF quality. The Swiss Ephemeris is available under a dual licensing model: GPL2 or Swiss Ephemeris Professional License.

KAudioCreator is an audio CD ripper, which uses cdparanoia as a backend to extract the tracks and later it encodes them to mp3 or ogg files (or many other formats supported). Features: - CDDB lookup to extract the album and track information - Different encoding formats supported (ogg, mp3, flac) - Different filename formats using tags

The asmixer utility is a mixer control for the X Windows environment. It is designed to work with the AfterStep Window Manager, but it will work with Window Maker or most any other Window Manager. It has controls for three configurable channels which are master, pcm, and cd volume by default.

Herrie is a small command line music player. It has vim-like controls and has some unique features, like chroot()'ing and dropping privileges. It also supports submission of songs to AudioScrobbler. This makes it an ideal application for low-end jukeboxes.