first_spec_class second_spec_class prob_first_spec_class prob_second_spec_class taxonomy wavelength author ref method V V 0.3999 0.4390 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT V V 0.4534 0.4390 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT