be5f8ad544
- source 8 public-domain equirectangular mosaics (io/europa/ganymede/callisto/ titan/triton/charon/phobos) from usgs astrogeology, downscale to 1024x512 jpg (0.92 mb added total, each <=143 kb); credits.md lists source/mission/license - bodies.js: texture field on the 8 sourced moon entries only - moons.js: load textures via ctx.loadTextureInto (same path as planets.js, so the moon's own 2k map also renders now); flat-color 404 fallback preserved - moons.js tick: tidal lock rotation.y = 2pi*(jd-J2000)/period + pi (signed period gives retrograde spin for free)
3.3 KiB
Texture credits
2k_* planet, Sun, ring & starfield maps — Solar System Scope (CC BY 4.0)
The 2k_ planet, Moon, Sun, ring and starfield maps in this directory are from
the Solar System Scope texture pack and are used under CC BY 4.0.
- Source: https://www.solarsystemscope.com/textures/
- License: Creative Commons Attribution 4.0 International (CC BY 4.0) https://creativecommons.org/licenses/by/4.0/
- Attribution: Solar System Scope (INOVE / solarsystemscope.com). Textures are based on NASA elevation and imagery data.
Downloaded 2026-07-16 at 2k resolution:
| File | Body |
|---|---|
| 2k_sun.jpg | Sun |
| 2k_mercury.jpg | Mercury |
| 2k_venus_surface.jpg | Venus (surface) |
| 2k_earth_daymap.jpg | Earth (day) |
| 2k_mars.jpg | Mars |
| 2k_jupiter.jpg | Jupiter |
| 2k_saturn.jpg | Saturn |
| 2k_uranus.jpg | Uranus |
| 2k_neptune.jpg | Neptune |
| 2k_moon.jpg | Moon |
| 2k_saturn_ring_alpha.png | Saturn rings (alpha) |
| 2k_stars_milky_way.jpg | Milky Way skybox panorama |
Attribution also appears in the app's HUD footer, as CC BY requires.
1k_* moon maps — USGS Astrogeology / NASA (public domain)
Added wave 2 (PERIHELION · SELENE). Global equirectangular (simple-cylindrical)
mosaics from the USGS Astrogeology Science Center (planetarymaps.usgs.gov),
built from NASA mission imagery. USGS/NASA-produced planetary data are in the
U.S. public domain (no copyright asserted). Each was downloaded as a GeoTIFF
and downscaled to 1024×512 JPEG with sips (Europa re-encoded at q70 to stay
under budget). Downloaded 2026-07-16.
| File | Body | Mission / instrument | Source (USGS Astrogeology) | License |
|---|---|---|---|---|
| 1k_io.jpg | Io | Galileo SSI + Voyager, color-merge | .../mosaic/Io_Galileo_SSI_Global_Mosaic_ClrMerge_1km.tif |
Public domain |
| 1k_europa.jpg | Europa | Voyager + Galileo SSI, global 500 m | .../mosaic/Europa_Voyager_GalileoSSI_global_mosaic_500m.tif |
Public domain |
| 1k_ganymede.jpg | Ganymede | Voyager + Galileo SSI, global color 1435 m | .../mosaic/Ganymede_Voyager_GalileoSSI_Global_ClrMosaic_1435m.tif |
Public domain |
| 1k_callisto.jpg | Callisto | Voyager + Galileo SSI, global 1 km | .../mosaic/Callisto_Voyager_GalileoSSI_global_mosaic_1km.tif |
Public domain |
| 1k_titan.jpg | Titan | Cassini ISS, global mosaic (PIA19658), 4 km | .../mosaic/Titan_ISS_P19658_Mosaic_Global_4km.tif |
Public domain |
| 1k_triton.jpg | Triton | Voyager 2, global color mosaic (gap-filled) 600 m | .../mosaic/Triton_Voyager2_ClrMosaic_GlobalFill_600m.tif |
Public domain |
| 1k_charon.jpg | Charon | New Horizons LORRI/MVIC, global mosaic 300 m (Jul 2017) | .../mosaic/Charon_NewHorizons_Global_Mosaic_300m_Jul2017_8bit.tif |
Public domain |
| 1k_phobos.jpg | Phobos | Mars Express HRSC-SRC, global mosaic 16 ppd | .../mosaic/Phobos_ME_SRC_Mosaic_Global_16ppd.tif |
Public domain |
Host base URL: https://planetarymaps.usgs.gov/mosaic/ (served from the USGS
asc-pds-services bucket). USGS terms: https://www.usgs.gov/information-policies-and-instructions/copyrights-and-credits.
Truth boundary (brief §7b): these are the real data textures — real worlds
get real maps. The stylized grimoire portraits in ../art/grimoire/ are the
aesthetic layer (generated art), kept visually and directorially separate.