Obs. : 2018-12-28
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.485e+11
Venus      3.423e+11
Earth      3.549e+11
Mars       3.591e+11
Jupiter    3.485e+11
Saturn     3.599e+11
Uranus     3.532e+11
Neptune    3.593e+11
Pluto      3.599e+11