first_spec_class second_spec_class prob_first_spec_class prob_second_spec_class taxonomy wavelength author ref method Cgx Cgx Movis NIR Popescu 2018A&A...617A..12P PHOT K 0.176 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT X X 0.1135 0.1135 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT