Quantity                                    Value               Units                  
Solar mass                                   1.9891E30          kg                 
Solar irradiance                             1.365E03           W m^{-2}           
Solar luminosity                             3.839E26           W                  
Solar radius                                 6.95508E08         m                  
Solar effective temperature                  5777               K                  
Solar absolute bolometric magnitude          4.74                                  
Solar apparent bolometric magnitude         -26.83                                 
Solar apparent ultraviolet magnitude (U)    -25.91                                 
Solar apparent blue magnitude (B)           -26.10                                 
Solar apparent visual magnitude (V)         -26.75                                 
Solar bolometric correction (BC)            -0.08                                  
Earth mass                                   5.9736E24          kg                 
Earth radius (equatorial)                    6.378136E06        m                  
Astronomical unit (AU)                       1.4959787066E11    m                  
Light year (ly, Julian)                      9.460730472E15     m                  
Parsec (pc)                                  2.06264806E05      AU                 
                                             3.0856776E16       m                  
                                             3.2615638          ly (Julian)        
Sidereal day                                 8.61640905309E04   s                  
Solar day                                    8.6400E04          s                  
Sidereal year                                3.15581450E07      s                  
                                             3.65256308E02      d                  
Tropical year                                3.155692519E07     s                  
                                             3.652421897E02     d                  
Julian year                                  3.1557600E07       s                  
                                             3.6525E02          d                  
Gregorian year                               3.1556952E07       s                  
                                             3.652425E02        d                  
Gravitational constant (G)                   6.673E-11          N m^2 kg^{-2}      
Speed of light (c)                           2.99792458E08      m s^{-1}           
Permeability of free space (mu_0)            1.25663706144E-06  N A^{-2}           
Permittivity of free space (epsilon_0)       8.854187817E-12    F m^{-1}           
Electric charge (e)                          1.602176462E-19    C                  
Electron volt (eV)                           1.602176462E-19    J                  
Planck's constant (h)                        6.62606876E-34     J s                
                  (hbar)                     1.054571596E-34    J s                
Boltzmann's constant (k)                     1.3806503E-23      J K^{-1}           
Stefan-Boltzmann constant (sigma)            5.670400E-08       W m^{-2} K^{-4}    
Radiation constant (a)                       7.565767E-16       J m^{-3} K^{-4}    
Atomic mass unit (u)                         1.66053873E-27     kg                 
Electron mass (m_e)                          9.10938188E-31     kg                 
Proton mass (m_p)                            1.67262158E-27     kg                 
Neutron mass (m_n)                           1.67492716E-27     kg                 
Hydrogen mass (m_H)                          1.673532499E-27    kg                 
Avogadro's number (N_A)                      6.02214199E23      mol^{-1}           
Gas constant (R)                             8.314472           J mol^{-1} K^{-1}  
Bohr radius (a_0)                            5.291772083E-11    m                  
Rydberg constant (R_infty)                   1.0973731568549E07 m^{-1}