Obs. : 2008-11-29
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.466e+11
Venus      3.487e+11
Earth      3.477e+11
Mars       3.466e+11
Jupiter    3.487e+11
Saturn     3.411e+11
Uranus     3.471e+11
Neptune    3.485e+11
Pluto      3.486e+11