first_spec_class second_spec_class prob_first_spec_class prob_second_spec_class taxonomy wavelength author ref method D S 0.1575 0.0640 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT V S 0.2036 0.0640 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT