Obs. : 2014-07-31
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.267e+11
Venus      3.253e+11
Earth      4.338e+11
Mars       4.105e+11
Jupiter    3.267e+11
Saturn     4.192e+11
Uranus     3.784e+11
Neptune    4.232e+11
Pluto      4.338e+11