https://universeobjects.com. Among the things I have written, is a database driven spatial and temporal universe object modeling system. All the objects, geometries, materials, and keplerian orbital variables for objects, planets, and stars are stored in MSSQL. New objects can be rendered simply by populating a row in a table without altering any code. They can be modified simply by changing column values. Rendered objects can also have properties modified at runtime such as scale, opacity, quaternion, euler rotation, and even the orbital variables. Take a look, and feel free to reach out. Extremely reasonable rates with a serious work ethic. Thanks.