Obs. : 2016-04-05
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.924e+11
Venus      3.980e+11
Earth      4.097e+11
Mars       4.129e+11
Jupiter    4.053e+11
Saturn     4.129e+11
Uranus     3.924e+11
Neptune    4.000e+11
Pluto      4.063e+11