first_spec_class second_spec_class prob_first_spec_class prob_second_spec_class taxonomy wavelength author ref method D S 0.0266 0.0160 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT V S 0.0645 0.0160 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT