The DECWindows Archive - Astronomy

Xearth sets the X root window an image of the Earth, as seen from your favorite vantage point in space, correctly shaded for the current position of the Sun. By default, xearth forks a child process that runs in the background, updating the displayed image every five minutes to reflect changes in the Sun's position. Xearth can also render directly into PPM and GIF files instead of drawing in the root window. See the man page for details.

Xearth 0.6 from CNAM

XEphem version 3.5.2 is an interactive astronomical ephemeris program for X Windows systems with Motif. It provides many graphical views as well as quantitative heliocentric, geocentric and topocentric information for Earth satellites, solar system and celestial objects.

Binaries provided: Alpha VMS 7.2-1 (built with DEC C 6.2) and VAX/VMS 6.2 (built with DEC C 5.2)

Xephem 3.5.2 sources from DECWarch

Xephem 3.5.2 sources from CNAM

Xephem 3.5.2 sources from DECWarch

Xephem 3.5.2 binaries from CNAM

Xephem Web Page

Xephem 3.2 Screenshots

XEphem version 3.2 is an interactive astronomical ephemeris program for X Windows systems with Motif. It provides many graphical views as well as quantitative heliocentric, geocentric and topocentric information for Earth satellites, solar system and celestial objects.

May 10 1999 update: Bug related to GSC catalogs cache directory corrected, thanks to Klaus.Schneider@leica-geosystems.com (related files: FSMENU.C and GSC.C)

Xephem 3.2 sources from CNAM

Xephem 3.2 binaries from CNAM

Xephem Web Page

Xephem 3.2 Screenshots

Xephem is an interactive astronomical ephemeris program for X Windows systems. Xephem requires at least X11R4 and OSF/Motif 1.1. Xephem has been built on many UNIX systems as well as VMS. A list of known ported systems and building hints may be found in the file INSTALL.

Xephem 2.8 from CNAM

Xephem Web Page

Xephem 2.8 Screenshots

Xephem is an interactive astronomical ephemeris program for X Windows systems. Xephem requires at least X11R4 and OSF/Motif 1.1. Xephem has been built on many UNIX systems as well as VMS. A list of known ported systems and building hints may be found in the file INSTALL.

Xephem 2.7.1 from CNAM

XEphem requires at least X11R4 and OSF/Motif 1.1 to build. Very few Motif 1.1 features were used so a back-port to Motif 1.0 should be fairly easy. Xephem has built on many UNIX systems as well as VMS.

Xephem 2.5 from CNAM

This program "solves" the n-body problem, and displays the results on the screen. It starts by putting a bunch of stars on the screen, and then it lets the inter-body gravitational forces move the stars around. The result is a lot of neat wandering paths, as the stars interact and collide.

XStar can be used to animate the root window, as a screen saver or just to display stuff in a regular window.

Xstar 2.2 from CNAM

Xstar Screenshots

   Last Update: May 12 2002    

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