Obs. : 2016-10-24
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.913e+11
Venus      3.816e+11
Earth      3.700e+11
Mars       3.847e+11
Jupiter    3.944e+11
Saturn     3.816e+11
Uranus     3.697e+11
Neptune    3.762e+11
Pluto      3.835e+11