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p5-GPS-Babel is a perl interface to gpsbabel.

Phoon displays the phase of the moon, either currently or at a specified date / time. Unlike other such programs, which just tell you how long since first quarter or something like that, phoon shows you the phase with a cute little picture. You can vary the size of the picture with the -l flag, but only some sizes have pictures defined - other sizes use @'s.

Geo::METAR is a perl module that processes METAR information from NOAA sources.

Starlink::AST provides a perl wrapper to the Starlink AST library. The Starlink AST library provides facilities for transforming coordinates from one system to another in an object oriented manner. Multiple coordinate frames can be associated with a data set and it is also possible to generate automatic mappings between frames. Coordinate frame objects can be imported from FITS headers and from NDF files.

Weather::Underground is a perl module which provides a simple OO interface to retrieving weather data for a geographic location. It does so by querying wunderground.com and parsing the returned results.

A ZConf based library to facilitate fetching weather information and dumping it or printing it via a template. zcweather - Fetches the weather for the specified location.

ptiger is a Tcl/Tk/Tkgeomap script that uses wdgeomap to display U.S. Census Burea populated places on an interactive geographic map. To run it, type ptiger on the command line. After a few seconds, a map should appear. Adjust the view by Dragging or Double-Clicking. As the cursor moves, a label below the map displays the cursor location and the azimuth and range from the + marker to the cursor. Move the + marker by Right-Double-Clicking. The map has dots at places with population greater than a user selected threshold. Moving the cursor over a dot labels the place with its name and displays the population in another label below the map. In addition to the wdgeomap menus, a Places menu enables adjustment of the population threshold and dot size. There is also a Find menu that does a case insensitive regular expression search for a named place.

py-RO is a collection of utilities including general algorithms, astronomical transformations and Tkinter widgets.

py-aipy collects together tools for radio astronomical interferometry. In addition to pure-python phasing, calibration, imaging, and deconvolution code, this package includes interfaces to MIRIAD (a Fortran interferometry package) and HEALPix (a package for representing spherical data sets), and some math/fitting routines from SciPy.

SAOimage (pronounced S-A-0-image) displays astronomical images in the X11 window environment. It was written by Mike Van Hilst while he was at the Smithsonian Astrophysical Observatory (SAO) in 1990 and is now maintained by Doug Mink also at the SAO. Online help and documentation are on the webpage. Image files can be read directly, or image data may be passed through a named pipe (Unix) or a mailbox (VMS) from IRAF display tasks. SAOimage provides a large selection of options for zooming, panning, scaling, coloring, pixel readback, display blinking, and region specification. User interactions are generally performed with the mouse, but keyboard alternatives are often available. The SAOimage desktop includes, a main image display window, a button menu panel, a display magnifier, a pan and zoom reference image, and a color bar. A color table graph window can be brought up by clicking on the color bar.