Obs. : 2011-04-01
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.753e+11
Venus      3.714e+11
Earth      4.376e+11
Mars       3.695e+11
Jupiter    3.753e+11
Saturn     4.287e+11
Uranus     3.695e+11
Neptune    3.714e+11
Pluto      3.936e+11