first_spec_class second_spec_class prob_first_spec_class prob_second_spec_class taxonomy wavelength author ref method B 0.999 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT V V 0.0536 0.0020 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT