first_spec_class second_spec_class prob_first_spec_class prob_second_spec_class taxonomy wavelength author ref method V X 0.0604 0.0650 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT X X 0.0660 0.0650 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT