Obs. : 2020-06-30
Planet	Ly alpha (photons/cm^2/sec)
Mercury    6.115e+08
Venus      6.180e+08
Earth      6.313e+08
Mars       6.078e+08
Jupiter    6.191e+08
Saturn     6.159e+08
Uranus     6.070e+08
Neptune    6.067e+08
Pluto      6.191e+08