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Common Constants in Astronomy


Identifier Value Units Description
uc_AstronomicalUnit 1.495978706911011 m astronomical unit
uc_EarthRadius 6378000 m mean radius of earth
uc_GravEarthAccel 9.80665 m s-2 gravitational acceleration on earth
uc_GravitationalConstant 6.67310-11 m3 kg-1 s-2 Newtonian constant of gravitation
uc_LightYear 9.460536207071015 m lightyear
uc_Parsec 3.085677581351016 m Parsec
uc_SolarMass 1.988921030 kg solar mass


Last Update: 2012-Oct-20