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AsteriaStar
Technique · Measurement, Data & Statistics

Determining Stellar Properties

How the measurable — brightness, colour, spectrum, motion — becomes the physical: a star's temperature, luminosity, mass, radius, chemical composition (metallicity), and age, mostly inferred through models rather than measured directly.

Measurement, Data & StatisticsMeasures: The physical properties of stars

Knowledge connections

Sources

The primary and reference sources this topic draws on.

  • NASANational Aeronautics and Space Administration

    Mission data, planetary science, space telescopes, and public-domain imagery.

    Most NASA-produced imagery is in the public domain; individual items are checked for usage terms before publication.