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<blockquote data-quote="tomBitonti" data-source="post: 6650070" data-attributes="member: 13107">Huh; the B5 locations are awfully close.&nbsp; So many worlds of galactic importance in a tiny space.In your research, have you found any easy to use database of nearby stars?&nbsp; Say, anything within 1000 light years.&nbsp; I've thought it would be interesting to figure out a &quot;migration pattern&quot; based on actual star locations, and working in some made up rules for how fast and how far folks could go.Many astronomical databases have placement on a sphere, and either no estimate of the distance, or very coarse estimates, or are expensive, or are just hard to use.The other data which I've always wondered about is how dense are stars, at least, within 1000 ly.&nbsp; I'm supposing the answer will have to include some distribution (e.g., brown dwarfs vs systems with more than one star).There is this, which is very interesting: <a href="https://en.wikipedia.org/wiki/Local_Bubble" target="_blank">https://en.wikipedia.org/wiki/Local_Bubble</a>And, if interstellar gas densities are important, the 300ly bubbles become very important and can be used as a feature of interstellar exploration stories.If you can ever find it, the game &quot;Star Gate&quot; had a correct (for the time) placement of stars out to about 30 ly, with very interesting, but complex, rules for movement in 3D by (essentially) teleporting across light years.&nbsp; One of the points of the game was how conflict changes when (1) random encounters except at cites of interest would never happen and (2) no meaningful defensive boundaries can be made.Thx!TomB</blockquote>

[QUOTE="tomBitonti, post: 6650070, member: 13107"] Huh; the B5 locations are awfully close. So many worlds of galactic importance in a tiny space. In your research, have you found any easy to use database of nearby stars? Say, anything within 1000 light years. I've thought it would be interesting to figure out a "migration pattern" based on actual star locations, and working in some made up rules for how fast and how far folks could go. Many astronomical databases have placement on a sphere, and either no estimate of the distance, or very coarse estimates, or are expensive, or are just hard to use. The other data which I've always wondered about is how dense are stars, at least, within 1000 ly. I'm supposing the answer will have to include some distribution (e.g., brown dwarfs vs systems with more than one star). There is this, which is very interesting: [url]https://en.wikipedia.org/wiki/Local_Bubble[/url] And, if interstellar gas densities are important, the 300ly bubbles become very important and can be used as a feature of interstellar exploration stories. If you can ever find it, the game "Star Gate" had a correct (for the time) placement of stars out to about 30 ly, with very interesting, but complex, rules for movement in 3D by (essentially) teleporting across light years. One of the points of the game was how conflict changes when (1) random encounters except at cites of interest would never happen and (2) no meaningful defensive boundaries can be made. Thx! TomB [/QUOTE]

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