Obs. : 2015-09-30
Planet	Ly alpha (photons/cm^2/sec)
Mercury    4.469e+11
Venus      4.280e+11
Earth      4.361e+11
Mars       4.280e+11
Jupiter    4.312e+11
Saturn     4.685e+11
Uranus     4.447e+11
Neptune    4.581e+11
Pluto      4.701e+11