Obs. : 2012-09-07
Planet	Ly alpha (photons/cm^2/sec)
Mercury    4.518e+11
Venus      4.749e+11
Earth      4.279e+11
Mars       4.006e+11
Jupiter    4.772e+11
Saturn     4.041e+11
Uranus     4.500e+11
Neptune    4.343e+11
Pluto      4.012e+11