Obs. : 2013-10-30
Planet	Ly alpha (photons/cm^2/sec)
Mercury    4.425e+11
Venus      4.620e+11
Earth      4.170e+11
Mars       4.339e+11
Jupiter    4.329e+11
Saturn     4.425e+11
Uranus     4.240e+11
Neptune    4.432e+11
Pluto      4.638e+11