Obs. : 2012-06-09
Planet	Ly alpha (photons/cm^2/sec)
Mercury    4.385e+11
Venus      4.490e+11
Earth      4.564e+11
Mars       4.638e+11
Jupiter    4.491e+11
Saturn     4.679e+11
Uranus     4.637e+11
Neptune    4.505e+11
Pluto      4.564e+11