Obs. : 2013-02-18
Planet	Ly alpha (photons/cm^2/sec)
Mercury    4.203e+11
Venus      4.407e+11
Earth      4.201e+11
Mars       4.280e+11
Jupiter    4.155e+11
Saturn     4.219e+11
Uranus     4.154e+11
Neptune    4.280e+11
Pluto      4.331e+11