Hi,
[Where this is all coming from: A while back, while excited by the whole StarDrive universe, I got to thinking if it would be possible to simulate the expansion of people out into the set volume of 1000ly, using the jump technology as specified by the game. I did a bit of research, and found lots of data, except that distances are very poorly known, and finding an online database was also hard. But, I may just not know where to look.]
Ya ... 1000 ly is huge (that's like 4
billion cubic light years). I didn't know that the galactic disk was only 1000ly thick.
My quick and dirty calculations give me:
local disk (r) == 1x10e3 [1000]
galactic disk (R) == 1x10e5 [100,000]
total stars (T) == 1x10e12 [1 trillion]
fraction of stars outside of central bulge (f) == 5x10e-1 [1/2]
So:
number of stars in the local disc

==
1x10e12 * (1x10e3/1x10e5)^2 * 5x10e-1 == 5x10e7 [50,000,000]
There is a big uncertainty as to the star count (at the very least), as the counts of dim objects (e.g., brown dwarfs) is uncertain.
I do have a (I'm presuming) reasonably accurate map as the game board for Star Force (from SPI!), which goes out about 30 ly. That's a bit old and is probably missing a large number of dim objects, but is quite usable. What I'm looking for is a computer database with a larger radius. I
know there must be some database out there (even if the distances have a huge uncertainty -- for a game use, that won't matter).
Edit: Oh wow, that link is great!
This one is intriguing:
http://www.solstation.com/x-objects/chimney.htm
If you place a limit on warp-speeds based on the cloud density, that gives you the beginnings of stellar geography!