Obs. : 2013-03-21
Planet	Ly alpha (photons/cm^2/sec)
Mercury    4.881e+11
Venus      4.784e+11
Earth      4.034e+11
Mars       4.611e+11
Jupiter    4.209e+11
Saturn     4.083e+11
Uranus     4.611e+11
Neptune    4.881e+11
Pluto      4.390e+11