# Physical, mathematical and unit conversion constats

GG   = 6.67408E-11            # SI units
cc   = 2.99792E8              # m/s
Msun = 1.98855E30             # kg
au   = 149597870700           # Astronomical units in metre
pc   = 3.0857e16              # Parsec in metres
sTy  = 365.*24.*60.*60.        # seconds to years conversion factor     
