first_spec_class second_spec_class prob_first_spec_class prob_second_spec_class taxonomy wavelength author ref method S S 0.6091 0.5560 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT V S 0.4400 0.5560 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT