Obs. : 2011-05-08
Planet	Ly alpha (photons/cm^2/sec)
Mercury    4.240e+11
Venus      4.240e+11
Earth      4.261e+11
Mars       4.240e+11
Jupiter    4.240e+11
Saturn     4.207e+11
Uranus     4.276e+11
Neptune    4.202e+11
Pluto      4.236e+11