Obs. : 2016-10-27
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.715e+11
Venus      3.704e+11
Earth      3.757e+11
Mars       3.689e+11
Jupiter    3.782e+11
Saturn     3.704e+11
Uranus     3.686e+11
Neptune    3.658e+11
Pluto      3.693e+11