Obs. : 2011-04-14
Planet	Ly alpha (photons/cm^2/sec)
Mercury    4.521e+11
Venus      4.483e+11
Earth      4.138e+11
Mars       4.521e+11
Jupiter    4.521e+11
Saturn     4.138e+11
Uranus     4.530e+11
Neptune    4.510e+11
Pluto      4.213e+11