Obs. : 2016-04-04
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.988e+11
Venus      4.043e+11
Earth      4.076e+11
Mars       4.125e+11
Jupiter    4.083e+11
Saturn     4.120e+11
Uranus     3.988e+11
Neptune    4.066e+11
Pluto      4.093e+11