Obs. : 2015-01-01
Planet	Ly alpha (photons/cm^2/sec)
Mercury    4.906e+11
Venus      4.906e+11
Earth      4.430e+11
Mars       4.890e+11
Jupiter    4.362e+11
Saturn     4.374e+11
Uranus     4.581e+11
Neptune    4.832e+11
Pluto      4.906e+11