Obs. : 2011-01-27
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.781e+11
Venus      3.633e+11
Earth      3.683e+11
Mars       4.005e+11
Jupiter    3.877e+11
Saturn     3.562e+11
Uranus     3.877e+11
Neptune    4.012e+11
Pluto      3.701e+11