Morgan–Keenan spectral classification
GPTKB entity
Statements (29)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
gptkb:stellar_classification
|
| gptkbp:alsoKnownAs |
gptkb:MK_system
|
| gptkbp:class |
stars
luminosity spectral characteristics |
| gptkbp:countryOfOrigin |
gptkb:Yerkes_Observatory
|
| gptkbp:developedBy |
gptkb:Philip_C._Keenan
gptkb:William_Wilson_Morgan |
| gptkbp:introducedIn |
1943
|
| gptkbp:predecessor |
gptkb:Harvard_spectral_classification
|
| gptkbp:usedIn |
gptkb:astronomy
|
| gptkbp:usesLuminosityClasses |
II
V VI III IV I VII |
| gptkbp:usesSpectralTypes |
G
O A B F K M |
| gptkbp:bfsParent |
gptkb:Philip_Keenan
gptkb:Philip_C._Keenan |
| gptkbp:bfsLayer |
7
|
| http://www.w3.org/2000/01/rdf-schema#label |
Morgan–Keenan spectral classification
|