Obs. : 2020-07-04
Planet	Ly alpha (photons/cm^2/sec)
Mercury    6.103e+08
Venus      6.168e+08
Earth      6.311e+08
Mars       6.071e+08
Jupiter    6.240e+08
Saturn     6.215e+08
Uranus     6.023e+08
Neptune    6.076e+08
Pluto      6.240e+08