Obs. : 2011-06-28
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.930e+11
Venus      4.071e+11
Earth      4.080e+11
Mars       4.187e+11
Jupiter    4.274e+11
Saturn     4.194e+11
Uranus     4.188e+11
Neptune    4.105e+11
Pluto      4.130e+11