Obs. : 2016-09-30
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.859e+11
Venus      3.839e+11
Earth      3.867e+11
Mars       3.798e+11
Jupiter    3.841e+11
Saturn     3.808e+11
Uranus     3.804e+11
Neptune    3.720e+11
Pluto      3.780e+11