Obs. : 2015-10-28
Planet	Ly alpha (photons/cm^2/sec)
Mercury    4.407e+11
Venus      4.158e+11
Earth      4.185e+11
Mars       4.222e+11
Jupiter    4.158e+11
Saturn     4.515e+11
Uranus     4.349e+11
Neptune    4.461e+11
Pluto      4.740e+11