Obs. : 2015-02-24
Planet	Ly alpha (photons/cm^2/sec)
Mercury    4.717e+11
Venus      4.781e+11
Earth      4.738e+11
Mars       4.781e+11
Jupiter    4.738e+11
Saturn     4.364e+11
Uranus     4.758e+11
Neptune    4.809e+11
Pluto      4.472e+11