Obs. : 2013-10-28
Planet	Ly alpha (photons/cm^2/sec)
Mercury    4.200e+11
Venus      4.219e+11
Earth      4.172e+11
Mars       4.328e+11
Jupiter    4.373e+11
Saturn     4.200e+11
Uranus     4.037e+11
Neptune    4.076e+11
Pluto      4.216e+11