▁criter ion ▁to ▁class ify ▁T ▁Ta uri ▁stars ▁and ▁subst ell ar ▁anal ogs ▁using ▁low - resol ution ▁optical ▁spect ro sc opy , ▁David ▁Bar rado ▁y ▁N avas c ues , ▁ 2 0 0 3 ▁ ▁Category : Star ▁types ▁* ▁Category : Star ▁formation <0x0A> </s> ▁The ▁King ▁of ▁the ▁Mountains ▁( K o M ; ▁Gran ▁Premio ▁della ▁Mont agna ▁or ▁G PM ▁in ▁Italian ) ▁is ▁the ▁title ▁given ▁to ▁the ▁best ▁clim ber ▁in ▁a ▁cy cling ▁road ▁race ; ▁usually ▁and ▁officially ▁known ▁as ▁the ▁Mountains ▁classification . ▁ ▁For ▁women ' s ▁cycle ▁racing , ▁a ▁similar ▁term , ▁Queen ▁of ▁the ▁Mountains ▁( Q o M ) ▁is ▁used . ▁ ▁While ▁the ▁title ▁may ▁be ▁given ▁to ▁the ▁r ider ▁who ▁ach ieves ▁the ▁highest ▁position ▁over ▁several ▁designated ▁clim bs ▁in ▁a ▁single - day ▁road ▁race , ▁it ▁is ▁more ▁usually ▁applied ▁to ▁stage ▁races ▁( for ▁example , ▁the ▁Grand ▁T ours , ▁ ▁Tour ▁de ▁France , ▁G iro ▁d ' Italia , ▁V uel ta ▁a ▁España ▁and ▁smaller ▁races ▁like ▁the ▁Tour ▁of ▁California ) ▁where ▁points ▁are ▁accum ulated ▁over ▁the ▁duration ▁of ▁the ▁whole ▁race . ▁ ▁In ▁the ▁Tour ▁de ▁France , ▁at ▁the ▁top ▁of ▁each ▁significant ▁clim b , ▁points ▁are ▁awarded ▁to ▁the ▁rid ers ▁who ▁are ▁first ▁over ▁the ▁top . ▁The ▁clim bs ▁are ▁categor ised ▁from ▁ 1 ▁( most ▁difficult ) ▁to ▁ 4