Obs. : 2013-05-25
Planet	Ly alpha (photons/cm^2/sec)
Mercury    4.529e+11
Venus      4.529e+11
Earth      4.480e+11
Mars       4.614e+11
Jupiter    4.529e+11
Saturn     4.675e+11
Uranus     4.668e+11
Neptune    4.505e+11
Pluto      4.447e+11