WELTLABOR — THIRD-PARTY CODE AND DATA

Runtime code (bundled locally, no CDN):

Babylon.js / @babylonjs/core 9.25.0
Copyright The Babylon.js team. Apache License 2.0.
https://github.com/BabylonJS/Babylon.js
Full package license: babylon-apache-2.0.txt
Original package notice: babylon-notice.txt
The upstream package notice is retained in full. It also lists optional package
components; the Weltlabor uses ordinary WebGL meshes and uncompressed local
textures, not Draco/Basis/TWGSL remote decoder resources.

Astronomy Engine 2.1.19
Copyright (c) 2019-2023 Don Cross. MIT License.
https://github.com/cosinekitty/astronomy
Complete embedded license notice: astronomy-mit.txt

GeographicLib Geodesic / geographiclib-geodesic 2.2.0
Copyright (c) 2011-2022 Charles Karney. MIT License.
https://github.com/geographiclib/geographiclib-js
Full package license: geographiclib-mit.txt

The libraries are bundled/minified for browser delivery; their mathematical
algorithms and original source packages are not modified. Generated *.LEGAL.txt
files preserve additional notices found by the bundler.

Local build and QA tools are not deployed: esbuild and Playwright.

Data and image attribution (separate from the code licenses):

../data/sky-sources.txt       HYG 4.1 and Stellarium source attribution
../data/stars-license.txt    CC BY-SA 4.0 terms for the adapted star datasets
../data/astronomy-sources.txt Astronomical references and model assumptions
../textures/sources.txt      NASA imagery, Natural Earth data and transformations

HYG and Stellarium-derived catalogs are distributed under CC BY-SA 4.0.
This dataset license does not relicense the independent application code.
https://creativecommons.org/licenses/by-sa/4.0/

The rendered inspection buildings, outer ice landscape and procedural weather
are authored schematic illustrations. Real heights and observation-point sources
are identified per measurement scenario in the application.