first_spec_class second_spec_class prob_first_spec_class prob_second_spec_class taxonomy wavelength author ref method B B 0.5334 0.4660 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT C B 0.1053 0.4660 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT