Obs. : 2013-05-14
Planet	Ly alpha (photons/cm^2/sec)
Mercury    4.713e+11
Venus      4.713e+11
Earth      4.539e+11
Mars       4.791e+11
Jupiter    4.607e+11
Saturn     4.614e+11
Uranus     4.929e+11
Neptune    4.614e+11
Pluto      4.496e+11