Odd question for you Astro-Guru's out there

By Joe Heck ·

TML message #5903From bundle 489

I've been playing with the idea of mapping traveller star systems into 3D
space, but I have a few questions about space in general that I have less
than a rudimentary knowledge of:

1> How "thick" is our galaxy? (in parsecs or light years) If I'm mapping it
   into 3D, I want to have a general idea of how much vertical space I have
   to work with.

2> Lots of SF works speak of nebulas. Where are these things located and how
   big are they? I've not seen any descriptions of these in Traveller and it
   seemed like a neat thing to include.

Any help?

 joe                          University of Missouri - Columbia
 [email removed]              [phone removed] the "row me" state