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RoadMap is a program for Linux that displays street maps. The maps are provided by the US Census Bureau, and thus only cover the US. RoadMap is at an early stage of development. At this time there are no routing features implemented yet. RoadMap can only display the map around a specified street address or follow a GPS device (using gpsd). The plan for the future is to implement some navigation features similar to those found in commercial street navigation systems. RoadMap uses a binary file format for representing the maps that is compact enough to allow the storage of many maps on a Compact Flash or MultiMedia card. The map of Los Angeles county takes about 10 Mbytes of flash space. RoadMap comes with a set of tools to convert the US Census bureau data into its own map format.

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.

This is sscalc, a sunrise/sunset time calculator, ported to C. You can find the sunrise and sunset times for anywhere in the world as long as you know the latitude and longitude of the location. The program is a port of the JavaScript program located at http://www.srrb.noaa.gov/highlights/sunrise/gen.html The page was written by Aaron Horiuchi, Chris Lehman and Chris Cornwall.

Keys: * Cursor keys move the view around. * +/- Speed the stars up and down. * Space resets the speed and the view. * Q quits. Have fun and don't get too dizzy!

StarPlot allows you to view three-dimensional perspective charts of stars. Check the Web site to get more star data sets.

Sunclock is an X11 application that displays a map of the Earth and shows the illuminated portion of the globe. In addition to providing local time for the default timezone, it also displays GMT time, legal and solar time of major cities, their latitude and longitude, the mutual distances of arbitrary locations on Earth, the position at zenith of Sun and Moon. Sunclock can display meridians, parallels, tropics and arctic circles. It has builtin functions that accelerate the speed of time and show the evolution of seasons. Sunclock can be internationalized for various western languages. It is possible to customize the app-default file and enter additional city entries. Sunclock can commute between two states, the "clock window" and the "map window". The clock window displays a small map of the Earth and therefore occupies little space on the screen, while the "map window" displays a large map and offers more advanced functions. The Sunclock package includes a resizable and zoomable vector map. External Earth maps can also be loaded.

A dockapp that displays the rise and set time of the sun.

Explore the world with Google Earth. View satellite imagery, maps, terrain, 3D buildings, galaxies far in space, and the deepest depths of the ocean. Available features include: - Explore rich geographical content - Zoom from outer space to street level - Search for business locations - Visualize your GPS tracks and share with others - Fly around cities (or the entire world) in 3D - Go back in time with historical imagery - Dive beneath the surface of the ocean

xeartk is a tkgeomap application that uses the geomap::wdgeomap command to create an interactive map. The geographic data is from the xearth root window program. by Kirk Lauritz Johnson in an interactive widget. xeartk is not part of and does not require xearth. It only uses the outline data defined in file mapdata.c of the xearth source distribution. The cities are from factmonster. Adjust the map view by Shift-Double-Clicking or Shift-Dragging. Double click a dot to display information about the city there on the terminal.

Displays a rendered view of the earth in your root window, similar to xearth, but instead uses a satellite image map of the earth. You can also substitute surface maps of other planets if you're feeling cosmic.