first_spec_class second_spec_class prob_first_spec_class prob_second_spec_class taxonomy wavelength author ref method C C 0.2718 0.2660 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT S C 0.0438 0.2660 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT