Obs. : 2014-12-31
Planet	Ly alpha (photons/cm^2/sec)
Mercury    4.925e+11
Venus      4.891e+11
Earth      4.430e+11
Mars       4.853e+11
Jupiter    4.315e+11
Saturn     4.401e+11
Uranus     4.534e+11
Neptune    4.795e+11
Pluto      4.925e+11