first_spec_class second_spec_class prob_first_spec_class prob_second_spec_class taxonomy wavelength author ref method V V 0.3778 0.0770 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT X V 0.0655 0.0770 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT