first_spec_class second_spec_class prob_first_spec_class prob_second_spec_class taxonomy wavelength author ref method Ad Ad Movis NIR Popescu 2018A&A...617A..12P PHOT B B 0.6295 0.5270 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT C B 0.2924 0.5270 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT