Obs. : 2017-11-27
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.693e+11
Venus      3.703e+11
Earth      3.642e+11
Mars       3.716e+11
Jupiter    3.715e+11
Saturn     3.693e+11
Uranus     3.601e+11
Neptune    3.616e+11
Pluto      3.699e+11