Obs. : 2013-05-28
Planet	Ly alpha (photons/cm^2/sec)
Mercury    4.495e+11
Venus      4.495e+11
Earth      4.543e+11
Mars       4.588e+11
Jupiter    4.495e+11
Saturn     4.611e+11
Uranus     4.556e+11
Neptune    4.364e+11
Pluto      4.475e+11