US$ 36
US$ 49
US$ 20
Compare Tachyon with other PDA and Desktop Softwares
Compare Features
| Feature | Astromist for Palm | The Sky PE | Pocket Stars | Tachyon |
| Price |
US$ 36
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US$ 49
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US$ 20
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| Full 640x480 VGA |
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| Autostar Tours |
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| Planning |
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| DSS Images |
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| SDSS Images |
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| GSC / GSC 2 /Hipparcos |
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| Vizier Catalogs/ Cross Reference |
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| Telescope Control |
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| Free PC Version |
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| Supernovae |
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| Variable Stars |
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| Multiple Stars |
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| Asteroids(Ephemerides&Trails) |
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| Comets(Ephemerides&Trails) |
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| Real Time Internet Data |
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| Calculators |
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| NGC/IC Comments |
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| NGC/IC drawings |
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| Internetware |
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| Themes |
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| Handpad Emulation |
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| User Profiles |
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| Hires Clementine Moon Maps |
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| RealSky Images |
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| Colored Stars by Spectral type |
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