Hertzsprung–Russell diagram

E61028

astronomical diagram stellar classification tool

The Hertzsprung–Russell diagram is a fundamental astronomical chart that plots stars’ luminosities against their temperatures or spectral types, revealing key patterns of stellar evolution and classification.

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All labels observed (4)

Label	Occurrences
Hertzsprung–Russell diagram canonical	11
color–magnitude diagram	1
observational Hertzsprung–Russell diagram	1
red giant branch	1

Statements (51)

Predicate	Object
instanceOf	astronomical diagram ⓘ stellar classification tool ⓘ
axisOrientation	luminosity increases upward on the y-axis ⓘ temperature decreases to the right on the x-axis ⓘ
centralConceptIn	stellar astrophysics ⓘ
displaysFeature	asymptotic giant branch ⓘ horizontal branch ⓘ instability strip ⓘ main sequence ⓘ Hertzsprung–Russell diagram self-linksurface differs ⓘ surface form: red giant branch subgiant branch ⓘ supergiant region ⓘ white dwarf sequence ⓘ
field	astronomy ⓘ astrophysics ⓘ
hasVariant	Hertzsprung–Russell diagram self-linksurface differs ⓘ surface form: observational Hertzsprung–Russell diagram theoretical Hertzsprung–Russell diagram ⓘ
helpsDetermine	age of star clusters ⓘ cluster turnoff point ⓘ evolutionary stage of a star ⓘ
historicalDevelopmentPeriod	early 20th century ⓘ
namedAfter	Ejnar Hertzsprung ⓘ Henry Norris Russell ⓘ
observationalVersionPlots	color index versus absolute magnitude ⓘ
plots	stellar absolute magnitude ⓘ stellar effective temperature ⓘ stellar luminosity ⓘ stellar spectral type ⓘ
relatedTo	Harvard spectral classification of stars ⓘ surface form: Morgan–Keenan classification Hertzsprung–Russell diagram self-linksurface differs ⓘ surface form: color–magnitude diagram spectral classification ⓘ
showsCorrelationBetween	stellar color and luminosity ⓘ stellar luminosity and temperature ⓘ stellar mass and position on main sequence ⓘ
theoreticalVersionPlots	effective temperature versus luminosity ⓘ
usedFor	inferring stellar ages ⓘ inferring stellar masses ⓘ inferring stellar radii ⓘ stellar classification ⓘ study of stellar evolution ⓘ visualizing stellar populations ⓘ
usedIn	galactic stellar population analysis ⓘ globular cluster studies ⓘ open cluster studies ⓘ stellar evolution modeling ⓘ
visualizationType	two-dimensional scatter plot ⓘ
xAxisRepresents	stellar color index ⓘ stellar effective temperature ⓘ stellar spectral type ⓘ
yAxisRepresents	stellar absolute magnitude ⓘ stellar luminosity ⓘ

Referenced by (14)

Full triples — surface form annotated when it differs from this entity's canonical label.

The Lives of the Stars → subject → Hertzsprung–Russell diagram ⓘ

Henry Norris Russell → knownFor → Hertzsprung–Russell diagram ⓘ

Henry Norris Russell → coDeveloperOf → Hertzsprung–Russell diagram ⓘ

Hertzsprung–Russell diagram → displaysFeature → Hertzsprung–Russell diagram self-linksurface differs ⓘ

this entity surface form: red giant branch

Hertzsprung–Russell diagram → relatedTo → Hertzsprung–Russell diagram self-linksurface differs ⓘ

this entity surface form: color–magnitude diagram

Hertzsprung–Russell diagram → hasVariant → Hertzsprung–Russell diagram self-linksurface differs ⓘ

this entity surface form: observational Hertzsprung–Russell diagram

On the Relations between the Spectra and Other Characteristics of the Stars → mainTopic → Hertzsprung–Russell diagram ⓘ

On the Relations between the Spectra and Other Characteristics of the Stars → relatedWork → Hertzsprung–Russell diagram ⓘ

Asteroid 1762 Russell → namedForKnownFor → Hertzsprung–Russell diagram ⓘ

subject surface form: 1762 Russell

Asteroid 1762 Russell → knownFor → Hertzsprung–Russell diagram ⓘ

subject surface form: Henry Norris Russell

Ejnar Hertzsprung → knownFor → Hertzsprung–Russell diagram ⓘ

Ejnar Hertzsprung → coDeveloperOf → Hertzsprung–Russell diagram ⓘ

Ejnar Hertzsprung → hasEponym → Hertzsprung–Russell diagram ⓘ

Structure and Evolution of the Stars → describes → Hertzsprung–Russell diagram ⓘ