Obs. : 2012-07-21
Planet	Ly alpha (photons/cm^2/sec)
Mercury    4.437e+11
Venus      4.327e+11
Earth      3.887e+11
Mars       4.379e+11
Jupiter    4.295e+11
Saturn     4.378e+11
Uranus     3.869e+11
Neptune    3.795e+11
Pluto      3.885e+11