Obs. : 2012-07-29
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.808e+11
Venus      3.772e+11
Earth      4.337e+11
Mars       4.394e+11
Jupiter    3.772e+11
Saturn     4.469e+11
Uranus     3.970e+11
Neptune    4.216e+11
Pluto      4.389e+11