Obs. : 2013-05-09
Planet	Ly alpha (photons/cm^2/sec)
Mercury    4.371e+11
Venus      4.277e+11
Earth      4.339e+11
Mars       4.371e+11
Jupiter    4.209e+11
Saturn     4.268e+11
Uranus     4.596e+11
Neptune    4.695e+11
Pluto      4.496e+11