first_spec_class second_spec_class prob_first_spec_class prob_second_spec_class taxonomy wavelength author ref method B B 0.2734 0.2690 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT V B 0.0339 0.2690 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT