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It only specifies the units of the constants buttons for future entries.

In this Calculator the period has been converted to seconds and the semi-major axis has been changed to cm.

 

 



Units: CGS SI













         

         

         

       


Physical constants


     

     



Astronomical Constants


   

   



Planetary Data


         






PHYSICAL CONSTANTS

Name Symbol Number CGS Units
Velocity of light c 2.998 x 1010 cm s-1
Planck constant h 6.626 x 10-27 erg s
Gravitational constant G 6.67 x 10-8 cm3 g-1 s-2
Electron charge e 4.803 x 10-10 esu
Mass of electron m_e 9.1096 x 10-28 g
Mass of proton m_p 1.6724 x 10-24 g
Mass of neutron m_n 1.6747 x 10-24 g
Mass of hydrogen m_H 1.6733 x 10-24 g
Atomic mass unit amu 1.661 x 10-24 g
Avagadro's number N_A 6.0222 x 1023 -
Boltzmann constant k 1.38 x 10-16 erg K-1
Electron volt ev 1.602 x 10-12 erg
Rad'n density constant a 7.5646 x 10-15 erg cm-3 K-4
Stefan-Boltzmann const sigma 5.67 x 10-5 erg cm-2 K-4 s-1
Fine structure constant \alpha 7.29735308 x 10-3 -
Rydberg constant R 2.17992 x 10-11 erg
Year yr 3.156 x 107 s
Astronomical unit AU 1.496 x 1013 cm
Parsec pc 3.086 x 1018 cm
Light year ly 9.463 x 1017 cm
Solar mass M_sun 1.99 x 1033 g
Solar radius R_sun 6.96 x 1010 cm
Solar Luminosity L_sun 3.9 x 1033 erg s-1
Solar Temperature T_sun 5780 K






PLANETARY DATA

Name Mass (g) Radius (cm) Period (yr) Semi-Major (AU) Eccentricity
Mercury 3.303 x 1026 2.439 x 108 2.4085 x 10-1 3.87096 x 10-1 0.205622
Venus 4.87 x 1027 6.05 x 108 6.1521 x 10-1 7.23342 x 10-1 0.006783
Earth 5.976 x 1027 6.378 x 108 1.00004 x 100 9.99987 x 10-1 0.016684
Mars 6.418 x 1026 3.397 x 108 1.88089 x 100 1.523705 x 100 0.093404
Jupiter 1.899 x 1030 7.14 x 109 1.18622 x 101 5.204529 x 100 0.047826
Saturn 5.686 x 1029 6 x 109 2.94577 x 101 9.575133 x 100 0.052754
Uranus 8.66 x 1028 2.615 x 109 8.40139 x 101 1.930375 x 101 0.050363
Neptune 1.03 x 1029 2.43 x 109 1.64793 x 102 3.020652 x 101 0.004014
Pluto 1 x 1025 1.2 x 108 2.47686 x 102 3.991136 x 101 0.256695