Yerkes system of stellar classification

GPTKB entity

Statements (23)
Predicate Object
gptkbp:instanceOf stellar classification
gptkbp:alsoKnownAs gptkb:MKK_system
gptkbp:appliesTo stars
gptkbp:class stellar luminosity class
stellar spectral type
gptkbp:developedBy gptkb:Philip_C._Keenan
gptkb:Edith_Kellman
gptkb:Yerkes_Observatory
gptkb:William_Wilson_Morgan
gptkbp:field gptkb:astronomy
https://www.w3.org/2000/01/rdf-schema#label Yerkes system of stellar classification
gptkbp:influenced modern stellar classification
gptkbp:introducedIn 1943
gptkbp:predecessor gptkb:Harvard_spectral_classification
gptkbp:usesLuminosityClasses I (supergiants)
II (bright giants)
III (giants)
IV (subgiants)
V (main-sequence stars)
VI (subdwarfs)
VII (white dwarfs)
gptkbp:bfsParent gptkb:Edith_Kellman
gptkbp:bfsLayer 7