constants.py

#everything here is in CGS

#Universal constants
h = 6.6260755e-27
c = 2.99792458e10
k = 1.380658e-16
hbar = 1.05457266e-27
G = 6.67259e-8
sigma = 5.67051e-5
Rydberg = 2.1798741e-11
Hydrogenmass = 1.67e-24
#
#Astronomical constants
AU = 1.496e13
PC = 3.086e18
lightyear = 9.463e17
Msun = 1.99e33
Rsun = 6.96e10
Lsun = 3.9e33
Tsun = 5.780e3
magsun = -26.73
B_absmagsun = 5.48
V_absmagsun = 4.83
#
#Planets
#Masses of planets
MMercury = 0.3302e27
MVenus = 4.8685e27
MEarth = 5.9736e27
MMars = 0.64185e27
MJupiter = 1.8986e30
MSaturn = 5.6846e29
MUranus = 86.832e27
MNeptune = 102.43e27
MPluto = 1.27e25
#Radii of planets
RMercury = 2440e5
RVenus = 6051.8e5
REarth = 6371e5
RMars = 3389.9e5
RJupiter = 69.911e8
RSaturn = 57.316e8
RUranus = 25054.86e5
RNeptune = 2.4764e9
#Density of planets
rhoMercury = 5.427
rhoVenus = 5.204
rhoEarth = 5.515
rhoMars = 3.933
rhoJupiter = 1.326
rhoSaturn = 0.6873
rhoUranus = 1.318
rhoNeptune = 1.638
#Eccentricity of planets
eMercury = 0.205
eVenus = 0.007
eEarth = 0.0168
eMars = 0.0934
eJupiter = 0.0485
eSaturn = 0.055
eUranus = 0.046
eNeptune = 0.009
#Inclination of planets degree w.r.t. Earth orbit
IMercury = 7.005
IVenus = 3.39447
IEarth = 0.0
IMars = 1.84973
IJupiter = 1.3033
ISaturn = 2.4889
IUranus = 0.773
INeptune = 1.770
#Semimajor axes of planets in AU
aMercury = 0.387
aVenus = 0.72333201
aEarth = 1.
aMars = 1.52368946
aJupiter = 5.2027584
aSaturn = 9.5428244
aUranus = 19.19206
aNeptune = 30.06893
#Spin periods of planets (day)
spinEarth = 0.997
spinMars = 1.026
spinJupiter = 0.414
spinSaturn = 0.44
spinUranus = 0.718
spinNeptune = 0.671
spinSun = 25.
#
#Conversion of units
km = 100000
yr = 31556925.9936
day = 86400.0
Angstrom = 1e-8
hour = 3600.