HYG Database — David Nash / Astronexus
Source: https://github.com/astronexus/HYG-Database
This work is licensed under the Creative Commons Attribution-ShareAlike 4.0 International License.
https://creativecommons.org/licenses/by-sa/4.0/

The star catalog distributed as stars.json is the stars.6.json subset from D3-Celestial:
https://github.com/ofrohn/d3-celestial/blob/master/data/stars.6.json
The JSON data is redistributed without changes. The application transforms its coordinates for display.
The catalog and adaptations of the catalog remain subject to CC BY-SA 4.0.