Titania by John Simmons

Physical Constants






 

Name Symbol Value
Speed of Light c 2.99792458 x 108 m/s
Electron Charge e 1.602177 x 10-19 C
Gravitation Constant G 6.67259 x 10-11 N m2/kg2
Planck's Constant h 6.6260755 x 10-34 J s
Boltzmann's Constant k 1.38066 x 10-23 J/K
Avogadro's Number NA 6.066 x 1023 molecules/mol
Gas Constant R 8.314510 J/mol K
Electron Mass me 9.10939 x 10-31 kg
Neutron Mass mn 1.67492 x 10-27 kg
Proton Mass mp 1.67262 x 10-27 kg
Permittivity of free space e0 8.854 x 10-12 C2/N m2
Permeability of free space m0 4p x 10-7 Wb/A m
Fine Structure Constant a 1/137 
Rydberg Constant R¥ 1.09737 x 107 m-1
Stefan-Boltzann Constant s 5.67051 x 10-8 W/m2 K4
Bohr Magneton mB 9.2740154 x 10-24 J/T
Nuclear Magneton mN 5.0507866 x 10-27 J/T
Thomson Cross Section se 0.66524616 x 10-28 m2
Classical Electron Radius re 2.81794092 x 10-15 m
So this isn't really a constant, but it's annoying to look up
Jansky Jy 10-26 W m-2 Hz-1
10-23 erg cm-2 s-1 Hz-1