Disambiguation evidence for Harvard spectral classification of stars via surface form
"Morgan–Keenan (MK) classification system"
Triples (1)
Triples where some other subject referred to this entity
as "Morgan–Keenan (MK) classification system".
Henry Draper Catalogue
→
influenced
→
"Morgan–Keenan (MK) classification system"
ⓘ
↳ resolves to Harvard spectral classification of stars