first_spec_class second_spec_class prob_first_spec_class prob_second_spec_class taxonomy wavelength author ref method O 0.20 Bus VIS Carvano 2010A&A...510A..43C PHOT V V 0.2571 0.3030 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT V V 0.4576 0.3030 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT