Obs. : 2009-12-30
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.733e+11
Venus      3.716e+11
Earth      3.506e+11
Mars       3.485e+11
Jupiter    3.636e+11
Saturn     3.464e+11
Uranus     3.569e+11
Neptune    3.686e+11
Pluto      3.716e+11