Obs. : 2012-10-28
Planet	Ly alpha (photons/cm^2/sec)
Mercury    4.010e+11
Venus      4.351e+11
Earth      4.366e+11
Mars       3.900e+11
Jupiter    4.394e+11
Saturn     4.302e+11
Uranus     3.832e+11
Neptune    3.680e+11
Pluto      3.786e+11