Obs. : 2013-08-18
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.796e+11
Venus      3.784e+11
Earth      4.139e+11
Mars       3.881e+11
Jupiter    3.906e+11
Saturn     3.903e+11
Uranus     4.069e+11
Neptune    4.118e+11
Pluto      4.034e+11