Obs. : 2020-06-25
Planet	Ly alpha (photons/cm^2/sec)
Mercury    6.217e+08
Venus      6.188e+08
Earth      6.299e+08
Mars       6.020e+08
Jupiter    6.158e+08
Saturn     6.158e+08
Uranus     6.144e+08
Neptune    6.020e+08
Pluto      6.158e+08