first_spec_class second_spec_class prob_first_spec_class prob_second_spec_class taxonomy wavelength author ref method S S 0.7636 0.7636 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT V 0.666 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT