Physical Celestial Objects - Planets is a standalone add-on for Blender that builds real-scale planets in high quality with real-time performance. It works with both the Cycles and Eevee render engines.
The add-on supports Blender versions 3.3 through 5.0 and is packaged as a Blender Extension, marked as extension-compatible on the source listing. It ships under the GPL license and includes documentation, and a demo video is available.
Physical Celestial Objects - Planets has recorded over 1,600 sales and holds a rating of 3 from 15 reviews on superhive. It comes from Physical Addons, a Blender Dev Fund contributor, and is also offered as part of the developer's three-add-on bundle. Published more than three years ago, it remains compatible across a wide span of Blender releases.