StarPlot 0.95.2

StarPlot is a program for Unix that allows you to view charts of the relative 3-dimensional positions of stars in space.
It is free software; the source code for StarPlot is available under the GNU General Public License. Here is a screenshot (click for a larger image).
Main features:
- Stars can be right-clicked to display a data popup window.
- Stars can be displayed or hidden by spectral class and absolute magnitude (also shown above).
- Stellar absolute magnitude limits can be set automatically based on the radius of the chart.
- Non-stellar objects such as nebulae are also supported.
- The stars being viewed may be plotted on a Hertzsprung-Russell diagram.
- Charts may be viewed in either celestial or galactic coordinate systems.
- Charts may be recentered, rotated, or zoomed in or out with a mouse click (this can also, of course, be done via dialog boxes for more precision).
- Current chart parameters may be saved to a file and reloaded later.
- The data file format is easy to read, well-documented, and text based.
- StarPlot is packaged with a program (starconvert) that converts line-oriented stellar data records to StarPlot format. Several well-known star catalogues are available from this website, complete with all the data needed for conversions.