The map shows only primary stars, which by definition are the most massive stars in each system, often they are the brightest stars as well, but not always. For instance, there are two black holes on this map, each one is the primary of the system, there could be other stars orbiting the black hole, but according to convention they are not shown. I have not determined which systems have multiple stars yet, that is another phase of development. I started generating systems according to the Traveller rules, but that proved to be tedious, so what I ended up doing is I copied each star type Size IV and lower and randomly pasted each a number of times on he map. I took care to make sure there were more low mass stars than high mass stars, black holes and pulsars are fairly rare so there are only two of each on the map, there is only one supergiant as well, a red one, surrounded by nebulas as they often blow out their outer atmosphere prior t going supernova!
