Obs. : 2015-10-04
Planet	Ly alpha (photons/cm^2/sec)
Mercury    4.679e+11
Venus      4.377e+11
Earth      3.994e+11
Mars       4.467e+11
Jupiter    4.564e+11
Saturn     4.632e+11
Uranus     4.028e+11
Neptune    4.354e+11
Pluto      4.473e+11