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Solmasseparameter

Ikke at forveksle med Solens masse.

Solmasseparameter er en gravitationsparameter indført af den Internationale Astronomiske Union [1] til brug for angivelse af stjerners masser. Den har følgende symbol og talværdi:

Grunden til, at man fastlægger værdien af produktet og ikke af selv, er, at størrelsen kan måles med langt større nøjagtighed end gravitationskonstanten , se evt. et regneeksempel.

Talværdien af denne nominelle størrelse er en afrundet værdi fra den hidtil mest nøjagtige måling, der giver [2]: 296 .

Bemærk, at det er standard, at symboler for målte størrelser kursiveres, medens symboler for enheder ikke kursiveres, jfr. for eksempel eller .

Kilder

  1. ^ Mamajek, E.E.; Prsa, A.; Torres, G.; et, al. (2015), IAU 2015 Resolution B3 on Recommended Nominal Conversion Constants for Selected Solar and Planetary Properties, arXiv:1510.07674, Bibcode:2015arXiv151007674M
  2. ^ Luzum, B.; Capitaine, N.; Fienga, A.; et 9, al. (2011), "The IAU 2009 system of astronomical constants: the report of the IAU working group on numerical standards for Fundamental Astronomy", Celestial Mechanics and Dynamical Astronomy, 110: 293-304

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