An excellent resource for any science fiction RPG enthusiast is the free Star System Explorer (https://star-system-generator.vercel.app). Particularly responsive in any chromium based browser, this application calculates star system dynamics and planetary physical details, providing a graphical display of the orbits around the star. It has been modeled on known physics, to give a consistent projection of a system composition.
Even more amazing is that it pulls data using the Travellermap API, enabling you to import Traveller subsectors, where every system is mapped out using the application’s logic. There is space for you to edit your copy of this with other world details useful for your campaign. All the world system mathematics heavy lifting seems to be carried for you, leaving you with just the juicy narrative aspects to add.
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| Subsector G, Hyperion, of the Vanguard Reaches |
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| One of the systems in the subsector |
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| The system’s mainworld |
Early days, but I think this tool may quickly become essential. You can save your maps and reload them should you need to. I’ll be using it at Travcon, perhaps with a screen display for a bit of a Sci Fi feel.
Amazing.