Appendix B Physical and astronomical constants

Physical constants speed of light gravitation constant Boltzmann constant Planck's constant Stefan-Boltzmann constant Wien displacement constant Rydberg constant Avogadro's number atomic mass unit mass of proton mass of neutron mass of electron mass of hydrogen atom charge of proton Bohr radius c = 2.99792456 X 1010 cm/s = 2.99792456 X 105 km/s G = 6.6732 X 10-8 dyne cm2g2 k = 1.3806 X 10-16 erg/K h = 6.62 62 X 10-27 erg s ct = 5.6696 X 10-5 erg/cm2 K4 s

R = 1.097373 X 105/cm Na = 6.022169 X 1023/mol u mp

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