first_spec_class second_spec_class prob_first_spec_class prob_second_spec_class taxonomy wavelength author ref method C C 0.5859 0.3440 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT S C 0.7503 0.3440 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT