After Hours: asset credits

Moon map: NASA Scientific Visualization Studio, Ernie Wright (USRA), LRO/LROC/LOLA. CGI Moon Kit https://svs.gsfc.nasa.gov/4720/ . Resized and encoded as WebP.

Planet and Sun maps: Solar System Scope / INOVE, based on NASA data. https://www.solarsystemscope.com/textures/ . CC BY 4.0 https://creativecommons.org/licenses/by/4.0/ . Resized and encoded as WebP. These are illustrative maps; missing terrain may be reconstructed by their creator.

Ephemerides: Astronomy Engine 2.1.19, Don Cross, MIT license; see /vendor/astronomy-LICENSE.txt . https://github.com/cosinekitty/astronomy

Armillary instrument: original mesh and materials made for this garden.
Aurora: original artistic shader, not a forecast.
All deep sky photographs: Damon Scotting. Source facts for journeys are linked in sky-journeys.json.