Obs. : 2020-03-30
Planet	Ly alpha (photons/cm^2/sec)
Mercury    6.376e+08
Venus      5.950e+08
Earth      6.165e+08
Mars       6.244e+08
Jupiter    6.229e+08
Saturn     6.244e+08
Uranus     6.181e+08
Neptune    6.376e+08
Pluto      6.229e+08