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Sites:
  		• AstroMake: Astromake is a utility intended to make installations of some common astronomical packages (in binary form) easy. In practice it is a shell script that with the aid of makefiles wraps around rpm's, tarballs and debian packages.
  		• Clear Sky Institute Inc.: astronomy software for UNIX
  		• LinuxAstro: Astronomical software on Linux.
  		• Nightfall Eclipsing Binary Star Program: Interactive, user-friendly binary star program for lightcurve synthesis, animated views, and data fitting. Can handle eccentric orbits, surface spots and asynchroneous rotation.
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