Obs. : 2012-07-16
Planet	Ly alpha (photons/cm^2/sec)
Mercury    4.307e+11
Venus      4.651e+11
Earth      4.045e+11
Mars       3.924e+11
Jupiter    4.686e+11
Saturn     3.851e+11
Uranus     4.592e+11
Neptune    4.371e+11
Pluto      3.937e+11