Obs. : 2012-07-17
Planet	Ly alpha (photons/cm^2/sec)
Mercury    4.404e+11
Venus      4.590e+11
Earth      4.005e+11
Mars       4.190e+11
Jupiter    4.598e+11
Saturn     4.084e+11
Uranus     4.385e+11
Neptune    4.185e+11
Pluto      3.888e+11