Obs. : 2011-04-24
Planet	Ly alpha (photons/cm^2/sec)
Mercury    4.512e+11
Venus      4.512e+11
Earth      4.329e+11
Mars       4.512e+11
Jupiter    4.658e+11
Saturn     4.570e+11
Uranus     4.430e+11
Neptune    4.090e+11
Pluto      3.983e+11