__author__ = 'sibirrer'



"""
this class contains physical constants and conversion factors between units
"""
import numpy as np

G = 6.67384*10**(-11)  # Gravitational constant [m^3 kg^-1 s^-2]
c = 299792458  # [m/s]

M_sun = 1.9891*10**30  # solar mass in [kg]
M_earth = 5.9972 * 10**24  # Earth mass in [kg]
AU = 1.495978707 * 10 **11  # Distance Earth Sun (Astronomical unit) in [m]

Mpc = 3.08567758*10**22  # Mpc in [m]
day_s = 24*3600  # day in second
arcsec = 2*np.pi/360/3600  # arc second in radian

