Obs. : 2015-06-18
Planet	Ly alpha (photons/cm^2/sec)
Mercury    4.819e+11
Venus      4.467e+11
Earth      4.637e+11
Mars       4.754e+11
Jupiter    4.467e+11
Saturn     4.612e+11
Uranus     4.924e+11
Neptune    4.731e+11
Pluto      4.716e+11