Obs. : 2013-07-19
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.977e+11
Venus      3.763e+11
Earth      4.165e+11
Mars       4.011e+11
Jupiter    4.011e+11
Saturn     4.055e+11
Uranus     4.013e+11
Neptune    4.065e+11
Pluto      4.165e+11