Obs. : 2013-12-12
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.933e+11
Venus      3.985e+11
Earth      4.289e+11
Mars       3.994e+11
Jupiter    4.232e+11
Saturn     3.883e+11
Uranus     4.058e+11
Neptune    3.965e+11
Pluto      4.003e+11