Obs. : 2012-05-19
Planet	Ly alpha (photons/cm^2/sec)
Mercury    4.236e+11
Venus      4.194e+11
Earth      4.484e+11
Mars       4.296e+11
Jupiter    4.236e+11
Saturn     4.328e+11
Uranus     4.401e+11
Neptune    4.453e+11
Pluto      4.494e+11