CONST_C = 299792458.0 # meters/s
CONST_G = 6.6743E-11 # m^3 kg/s^2
MASS_SUN = 1.988409870698051E+30 # kg
RADIUS_SUN = 695700000.0 # meters
LUMINOSITY_SUN = 3.828E26 # Watts = Joule/s
DIST_PC = 3.085677581491367E+16 # meters
DIST_KPC = 3.085677581491367E+19 # meters
DIST_MPC = 3.085677581491367E+22 # meters
DIST_GPC = 3.085677581491367E+25 # meters
ANGLE_MICROARCSEC = 4.848136811095361E-12 # radians
ANGLE_MILLIARCSEC = 4.848136811095361E-09 # radians
ANGLE_ARCSEC = 4.848136811095361E-06 # radians
ANGLE_ARCMIN = 0.0002908882086657216 # radians
ANGLE_DEGREE = 0.017453292519943295 # radians
YEAR2SECOND = 31557600.0 # Seconds in a year
YEAR2HOUR = 8766.0 # Hours in a year
YEAR2DAY = 365.25 # Days in a year
DAY2HOUR = 24.0 # Hours in a day
DAY2SECOND = 86400.0 # Seconds in a day