Star catalogue — licence and attribution
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This pack is a derived subset of the HYG stellar database.

  Source : HYG v4.x (Hipparcos-Yale-Gliese), by David Nash / astronexus
  URL    : https://codeberg.org/astronexus/hyg
  Licence: Creative Commons Attribution-ShareAlike 4.0 International
           https://creativecommons.org/licenses/by-sa/4.0/

You are free to share and adapt this data, including commercially, provided
you give appropriate credit and distribute your adaptations under the same
licence. Nothing here restricts the software that reads it.

The pack's contents (right ascensions converted to degrees, magnitude cut,
de-duplication) are an adaptation of HYG and are offered under
CC BY-SA 4.0 as required by that licence.

Attribution shown in-app: "Star data: HYG Database (astronexus), CC BY-SA 4.0"
