first_spec_class second_spec_class prob_first_spec_class prob_second_spec_class taxonomy wavelength author ref method Kl Kl Movis NIR Popescu 2018A&A...617A..12P PHOT S 0.981 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT V V 0.2136 0.2136 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT