Obs. : 2013-04-10
Planet	Ly alpha (photons/cm^2/sec)
Mercury    4.067e+11
Venus      4.006e+11
Earth      4.562e+11
Mars       4.006e+11
Jupiter    4.027e+11
Saturn     4.590e+11
Uranus     4.018e+11
Neptune    4.339e+11
Pluto      4.445e+11