Obs. : 2013-08-17
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.534e+11
Venus      3.613e+11
Earth      3.985e+11
Mars       3.645e+11
Jupiter    3.645e+11
Saturn     3.731e+11
Uranus     3.805e+11
Neptune    3.901e+11
Pluto      3.912e+11