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 S 0.6229 0.3990 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT V S 0.0230 0.3990 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT