From the back of the book:
We live in a golden age in astronomy. Fifty years ago, our understanding of the Solar system was upended by NASA missions. We could only guess at worlds circling other stars. Now we know of thousands of exoplanets, with hundreds more revealed every year. These discoveries have been full of surprises!
We’ve built new guidelines from the current consensus on exoplanet data for creating fictional stars and worlds! Architect of Worlds is born of years of research into the cutting edge of astronomy and planet formation, explained in layman’s terms.
We provide a complete toolkit for designing a star system and its individual worlds, as a detailed place to visit and explore. Using dice, charts, tables, logical procedures, and high school mathematics, it gives you everything you need to design plausible worlds for your interstellar setting. The design system uses standard scientific units, and is compatible with any tabletop game rules.