first_spec_class second_spec_class prob_first_spec_class prob_second_spec_class taxonomy wavelength author ref method S V 0.5016 0.4110 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT V V 0.5375 0.4110 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT