Obs. : 2012-05-01
Planet	Ly alpha (photons/cm^2/sec)
Mercury    4.776e+11
Venus      4.427e+11
Earth      4.195e+11
Mars       4.347e+11
Jupiter    4.625e+11
Saturn     4.295e+11
Uranus     4.818e+11
Neptune    4.571e+11
Pluto      4.217e+11