SOLAR WANDERER - POCKET PLANETARIUM
Source: https://github.com/hyqzz/Solar-Wanderer/tree/4129521b8305993021e801fb09eeb79165c82041
Original code Copyright (c) 2026 hyqzz, MIT. Observed 766 GitHub stars November 6, 2026; source pushed November 5, 2026.

SkillSafe compact adaptation: English root entry, flat relative local resources, 512px texture previews only, binary star/shape data converted to JSON, original analytic planetary/moon/TNO ephemerides, original procedural terrain without DEM, no live JPL shards or observed cloud map, no service worker or VR/speech services. Some moons use original procedural texture fallbacks. This educational interactive explorer is not a flight/navigation or current sky-prediction instrument. No server, account or external runtime asset is required.

Planet textures used: Solar System Scope https://www.solarsystemscope.com/textures/ under Creative Commons Attribution 4.0 https://creativecommons.org/licenses/by/4.0/ . Included upstream 512px resamplings. Credit Solar System Scope, NASA/USGS/SDO source imagery. Maps: Sun, Mercury, Venus, Earth day/night/clouds, Moon, Mars, Jupiter, Saturn/rings, Uranus, Neptune and Milky Way.

NASA/USGS/DLR/ESA publicly released planetary mosaics: Mimas, Enceladus, Tethys, Dione, Rhea, Iapetus; Phobos, Miranda, Ariel, Umbriel, Titania, Oberon. Upstream selected/resampled maps unchanged. NASA Solar System Treks https://trek.nasa.gov/ and USGS Astrogeology https://astrogeology.usgs.gov/ . Credits and layer IDs in original upstream THIRD_PARTY_NOTICES section below. No NASA or source endorsement is implied. Steve Albers maps and Deimos CC BY-SA image omitted, original procedural fallbacks used instead.

Star catalog: Yale Bright Star Catalogue BSC5, CDS V/50; scientific data as bundled by upstream. Small-body orbits: NASA JPL SBDB. Shape grids: NASA PDS SBN / Thomas et al. Original scientific coefficients: Astronomia MIT notices below.

Tags: github-source, game.

# Third party notices

## Astronomia — lunar coefficient transcription

The scientific coefficient tables in `src/astro/moonTerms.js` were checked and
transcribed against https://github.com/commenthol/astronomia/blob/master/src/moonposition.js.

The MIT License (MIT)

Copyright (c) 2013 Sonia Keys
Copyright (c) 2016 Commenthol

Permission is hereby granted, free of charge, to any person obtaining a copy of
this software and associated documentation files (the "Software"), to deal in
the Software without restriction, including without limitation the rights to
use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
the Software, and to permit persons to whom the Software is furnished to do so,
subject to the following conditions:

The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

## Planetary surface textures

Surface maps are redistributed unmodified or resampled from the sources below.
They are **not** covered by this project's MIT licence; each keeps its own terms.

### NASA Solar System Treks (WMTS)

Global mosaics for six Saturnian satellites, assembled from map tiles by
`tools/fetch-moon-textures.mjs`.

| Texture | Layer | Source data |
|---|---|---|
| `mimas.jpg` | `MI_170630_DLR_basemap` | Cassini ISS |
| `enceladus.jpg` | `Enceladus_Cassini_mosaic_global_110m` | Cassini ISS |
| `tethys.jpg` | `Tethys_Cassini_mosaic_global_293m` | Cassini ISS |
| `dione.jpg` | `Dione_Cassini_Voyageglobal_154m` | Cassini + Voyager |
| `rhea.jpg` | `RH_120803_DLR_basemap` | Cassini ISS |
| `iapetus.jpg` | `Iapetus_Cassini_Voyager_mosaic_global_783m` | Cassini + Voyager |

Service: <https://trek.nasa.gov/> · NASA / USGS / DLR · public domain.

### USGS Astrogeology / JPL global mosaics

| Texture | Original | Credit |
|---|---|---|
| `phobos.jpg` | Phobos Viking Mosaic (DLR-controlled) | NASA / JPL / USGS / DLR · public domain |
| `miranda.jpg` | Miranda global map | NASA / JPL / USGS · public domain |
| `ariel.jpg` | Ariel global map | NASA / JPL / USGS · public domain |
| `umbriel.jpg` | Umbriel global map | NASA / JPL / USGS · public domain |
| `titania.jpg` | Titania global map | NASA / JPL / USGS · public domain |
| `oberon.jpg` | Oberon global map | NASA / JPL / USGS · public domain |
| `deimos.jpg` | Deimos global map | NASA / USGS mosaic, derived by Askaniy · **CC BY-SA 3.0** |

`deimos.jpg` is the only texture under a share-alike licence. It is redistributed
under CC BY-SA 3.0; the rest of this repository remains MIT.

### Earlier textures

The remaining maps in `public/textures/` come from Solar System Scope
(CC BY 4.0, derived from NASA/USGS/SDO imagery) and Steve Albers' NASA Science
on a Sphere cylindrical maps. See `tools/fetch-textures.mjs`.