Obs. : 2011-04-07
Planet	Ly alpha (photons/cm^2/sec)
Mercury    4.092e+11
Venus      4.432e+11
Earth      4.279e+11
Mars       4.153e+11
Jupiter    4.153e+11
Saturn     4.279e+11
Uranus     4.226e+11
Neptune    4.473e+11
Pluto      4.462e+11