# Planet maps

The planet maps in this folder are Solar System Scope's textures
(https://www.solarsystemscope.com/textures/), based on NASA elevation and imagery
data, by INOVE: `8k_moon.jpg`, `8k_earth_daymap.jpg`, `8k_earth_nightmap.jpg`, `8k_earth_clouds.jpg`, `8k_mars.jpg`, `8k_jupiter.jpg`, `8k_saturn.jpg`, `8k_saturn_ring_alpha.png`.

Licence: Creative Commons Attribution 4.0 International (CC BY 4.0),
https://creativecommons.org/licenses/by/4.0/.

Changes: resized to 4096 by 2048 pixels (desktop) and 2048 by 1024 (`-small`, phones),
the cloud and night maps to 2048 by 1024 (clouds in one channel), the ring strip to 2048 by 64, and re-encoded as
WebP by `scripts/build-study-planets.mjs` from the SHA-256-pinned sources in
`scripts/sources/study-planets.json`.