The Terran Starsector is the first of many StarSector Atlases for use with Space Opera. Readers will note that this is a numbered atlas, which will denote atlases in this series. There will also be Star- Sector Atlases which are not numbered and are not from the same game universe. The un-numbered atlases will each be from the universe unique to the writer/designer of the atlas. Some stars that appear in this atlas may also appear in an un-numbered atlas as these would then be different campaigns and game universes.
Space Opera is a game of large scope and it is playable in a variety of campaign styles. Thus, an atlas can be from any given campaign as there is no one true way to play Space Opera, and each campaign will be different to meet the interests of the players in that campaign.