By Y. Chen et al. (2019)
What it does
YBC integrates libraries of stellar spectra (ATLAS9, PHOENIX, MARCS, COMARCS, PoWR and others) through the filter curves of each photometric system, with extinction computed star by star. Given a star's magnitude in any of those filters, it returns the correction to its bolometric magnitude, and so its luminosity.
The database is by Y. Chen and colleagues (2019) and is hosted by INAF, Osservatorio Astronomico di Padova.
How I used it
In my MSc thesis I used YBC alongside BCCode to convert Gaia magnitudes into bolometric magnitudes, and from them to derive stellar luminosities (Sect. 4.2.1).
The animation
The points are real: about 95,000 isochrone points at two metallicities from the public MESA grid (Choi et al. 2016, Dotter 2016). Each point's library follows the selection rules of Chen et al. (2019), section 3.10, applied to its own temperature, gravity, surface composition and mass loss. The library colours, the band's shape and the brightness response are drawn; the response uses blackbody shares as a stand-in for the library spectra.