Obs. : 2011-08-13
Planet	Ly alpha (photons/cm^2/sec)
Mercury    4.017e+11
Venus      4.007e+11
Earth      4.006e+11
Mars       4.010e+11
Jupiter    3.927e+11
Saturn     4.021e+11
Uranus     3.933e+11
Neptune    3.972e+11
Pluto      4.058e+11