Obs. : 2012-02-25
Planet	Ly alpha (photons/cm^2/sec)
Mercury    4.017e+11
Venus      4.043e+11
Earth      4.299e+11
Mars       4.270e+11
Jupiter    4.067e+11
Saturn     4.106e+11
Uranus     4.017e+11
Neptune    3.998e+11
Pluto      3.996e+11