# Milky Way image licence

`assets/sky/milky-way-eso0932a-2048.jpg` is adapted from **The Milky Way panorama**
(ESO image eso0932a, released 14 September 2009), https://www.eso.org/public/images/eso0932a/

Credit: ESO/S. Brunier

Licence: Creative Commons Attribution 4.0 International (CC BY 4.0),
https://creativecommons.org/licenses/by/4.0/ . ESO's usage terms:
https://www.eso.org/public/outreach/copyright/

Source file: https://cdn.eso.org/images/large/eso0932a.jpg (6000 x 3000 JPEG),
sha256 60400c92c54b7c1bd12299c69e83b16e5b6256e7dabacc478c021758ecd28179,
retrieved 22 Sep 2026.

Changes made: two planets photographed into the panorama (in Sagittarius near
RA 289.6 Dec -24.3, and in Aquarius near RA 347.3 Dec -6.3) were painted out
with nearby sky so they do not appear as fixed stars; then resized to
2048 x 1024 (Lanczos) and re-encoded as JPEG quality 86.
In the game the image is mapped onto the sky by galactic coordinates, its faint
background level is subtracted, and its brightness follows twilight and moonlight.

Suggested in-game credit: "Milky Way: ESO/S. Brunier, CC BY 4.0."