first_spec_class second_spec_class prob_first_spec_class prob_second_spec_class taxonomy wavelength author ref method S S 0.0917 0.1350 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT V S 0.2408 0.1350 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT