Obs. : 2015-09-28
Planet	Ly alpha (photons/cm^2/sec)
Mercury    4.464e+11
Venus      4.324e+11
Earth      4.524e+11
Mars       4.324e+11
Jupiter    4.337e+11
Saturn     4.672e+11
Uranus     4.591e+11
Neptune    4.721e+11
Pluto      4.794e+11