Obs. : 2018-11-30
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.483e+11
Venus      3.443e+11
Earth      3.485e+11
Mars       3.506e+11
Jupiter    3.483e+11
Saturn     3.537e+11
Uranus     3.486e+11
Neptune    3.506e+11
Pluto      3.542e+11