Obs. : 2018-11-16
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.496e+11
Venus      3.435e+11
Earth      3.526e+11
Mars       3.578e+11
Jupiter    3.496e+11
Saturn     3.569e+11
Uranus     3.534e+11
Neptune    3.573e+11
Pluto      3.611e+11