Obs. : 2015-10-24
Planet	Ly alpha (photons/cm^2/sec)
Mercury    4.308e+11
Venus      4.304e+11
Earth      4.597e+11
Mars       4.317e+11
Jupiter    4.304e+11
Saturn     4.566e+11
Uranus     4.837e+11
Neptune    4.924e+11
Pluto      4.770e+11