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... > physical property > electromagnetic property > optical property > brightness > stellar magnitude > absolute magnitude
astronomical technique > astrometry > stellar magnitude > absolute magnitude

Terme préférentiel

absolute magnitude  

Définition(s)

  • Absolute magnitude (M) is a measure of the luminosity of a celestial object on an inverse logarithmic astronomical magnitude scale. An object's absolute magnitude is defined to be equal to the apparent magnitude that the object would have if it were viewed from a distance of exactly 10 parsecs (32.6 light-years), without extinction (or dimming) of its light due to absorption by interstellar matter and cosmic dust. By hypothetically placing all objects at a standard reference distance from the observer, their luminosities can be directly compared among each other on a magnitude scale. (Wikipedia, The Free Encyclopedia, https://en.wikipedia.org/wiki/Absolute_magnitude)

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URI

http://data.loterre.fr/ark:/67375/MDL-K792QP3F-7

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RDF/XML TURTLE JSON-LD Dernière modif. 24/04/2023