Acknowledgements

This site relies on open-source software and data made available by the astronomy community.

Sky maps and chart generation are built extensively using starplot by Steve Berardi.
Source: github.com/steveberardi/starplot

Astronomical calculations for rise/set times, positions, and coordinate transformations are performed using Astronomy Engine by Don Cross.
Source: github.com/cosinekitty/astronomy

Additional astronomical computations and data processing use Astropy, a community-developed core Python package for astronomy.
Source: astropy.org

The Bahtinov Mask Generator uses OpenSCAD models by Brent Burton (2013–2014) and Juan M. (2017) as reference for its mask geometry, licensed under CC-BY-SA.

Gratitude is extended to the authors and maintainers of these projects for making their work openly available.