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PhysicalConstants Module

Collection of physical constants

Functions and values

Function or value Description

AU

Full Usage: AU

Returns: float

Astronomical Unit (radius of the Earth's orbit). Units cm

Returns: float

AVOGADRO

Full Usage: AVOGADRO

Returns: float

Avogadro Number. Units 1/mol

Returns: float

BOLTZMAN

Full Usage: BOLTZMAN

Returns: float

Boltzman Constant. Units erg/deg(K)

Returns: float

ECHARGE

Full Usage: ECHARGE

Returns: float

Elementary Charge. Units statcoulomb

Returns: float

EMASS

Full Usage: EMASS

Returns: float

Electron Mass. Units g

Returns: float

GASCONSTANT

Full Usage: GASCONSTANT

Returns: float

Gas Constant. Units erg/deg-mol

Returns: float

GRAV

Full Usage: GRAV

Returns: float

Gravitational Constant. Units dyne-cm^2/g^2

Returns: float

GRAVACC

Full Usage: GRAVACC

Returns: float

Gravitational Acceleration at the Earths surface. Units cm/sec^2

Returns: float

LIGHTSPEED

Full Usage: LIGHTSPEED

Returns: float

Speed of Light in a Vacuum. Units cm/sec

Returns: float

PLANCK

Full Usage: PLANCK

Returns: float

Planck constant. Units erg-sec

Returns: float

PMASS

Full Usage: PMASS

Returns: float

Proton Mass. Units g

Returns: float

SOLARFLUX

Full Usage: SOLARFLUX

Returns: float

Solar Flux. Units erg/cm^2-sec

Returns: float

SOLARLUM

Full Usage: SOLARLUM

Returns: float

Solar Luminosity. Units erg/sec

Returns: float

SOLARMASS

Full Usage: SOLARMASS

Returns: float

Solar Mass. Units g

Returns: float

SOLARRADIUS

Full Usage: SOLARRADIUS

Returns: float

Solar Radius. Units cm

Returns: float

STEFANBOLTZ

Full Usage: STEFANBOLTZ

Returns: float

Stefan-Boltzman Constant. Units erg/cm^2-sec-deg^4

Returns: float

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