Obs. : 2013-07-20
Planet	Ly alpha (photons/cm^2/sec)
Mercury    4.164e+11
Venus      3.848e+11
Earth      4.281e+11
Mars       4.164e+11
Jupiter    4.164e+11
Saturn     4.064e+11
Uranus     4.193e+11
Neptune    4.245e+11
Pluto      4.281e+11