Obs. : 2015-01-31
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.368e+11
Venus      3.484e+11
Earth      3.538e+11
Mars       3.572e+11
Jupiter    3.526e+11
Saturn     3.272e+11
Uranus     3.612e+11
Neptune    3.484e+11
Pluto      3.295e+11