Obs. : 2010-05-06
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.819e+11
Venus      3.863e+11
Earth      3.930e+11
Mars       3.882e+11
Jupiter    3.773e+11
Saturn     3.969e+11
Uranus     3.773e+11
Neptune    3.736e+11
Pluto      3.816e+11