Credits & Sources

Planet & Moon Textures

• Earth — NASA Blue Marble Next Generation Public domain
• Moon — NASA Lunar Reconnaissance Orbiter Public domain
• Mars — USGS Viking MDIM21 mosaic Public domain
• Jupiter — NASA/JPL Cassini PIA07782 Public domain
• Pluto — NASA/JHUAPL/SwRI New Horizons Public domain
• Europa — NASA/JPL Voyager/Galileo mosaic Public domain
• Mercury, Venus, Saturn (body & rings), Uranus, Neptune — Solar System Scope CC-BY 4.0
• Io, Ganymede, Callisto — Björn Jónsson from NASA/JPL Voyager + Galileo data Publicly available, attribution requested

Star Data

• 8,404 stars from the Yale Bright Star Catalog, 5th Rev. (Hoffleit & Warren, 1991, prepared at NASA Goddard NSSDC/ADC) Public domain

Orbital & Rotation Data

• JPL “Keplerian Elements for Approximate Positions of the Major Planets” (Standish, 1992)
• IAU Working Group on Cartographic Coordinates and Rotational Elements

Mission Trajectory Data

• Artemis II — NASA Artemis mission planning documents Public domain
• Apollo 8, 11, 13 — NASA Apollo Flight Journal & Mission Reports Public domain
• Cassini-Huygens — NASA/JPL mission timeline Public domain
• Voyager 1 & 2 — NASA/JPL Voyager mission data Public domain
• New Horizons — NASA/JHUAPL mission data Public domain
• Perseverance — NASA/JPL Mars 2020 mission data Public domain
• Parker Solar Probe — NASA/JHUAPL mission data Public domain
• BepiColombo — ESA/JAXA mission planning data Public
• ISS orbital elements — NASA Public domain

Technology

• Rendered with Three.js MIT

Licence

• Source code released under the MIT licence. Bundled assets carry their own licences (see above) — all permit redistribution including commercial use when their attributions are preserved.