Obs. : 2018-06-05
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.667e+11
Venus      3.700e+11
Earth      3.719e+11
Mars       3.564e+11
Jupiter    3.719e+11
Saturn     3.618e+11
Uranus     3.673e+11
Neptune    3.541e+11
Pluto      3.595e+11