Obs. : 2013-07-07
Planet	Ly alpha (photons/cm^2/sec)
Mercury    4.073e+11
Venus      4.031e+11
Earth      4.112e+11
Mars       4.047e+11
Jupiter    4.033e+11
Saturn     4.069e+11
Uranus     4.057e+11
Neptune    4.069e+11
Pluto      4.112e+11