Obs. : 2009-06-17
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.534e+11
Venus      3.463e+11
Earth      3.489e+11
Mars       3.523e+11
Jupiter    3.442e+11
Saturn     3.581e+11
Uranus     3.416e+11
Neptune    3.442e+11
Pluto      3.511e+11