Obs. : 2012-09-24
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.956e+11
Venus      3.949e+11
Earth      4.759e+11
Mars       4.373e+11
Jupiter    4.499e+11
Saturn     4.057e+11
Uranus     4.679e+11
Neptune    4.720e+11
Pluto      4.605e+11