Obs. : 2020-10-29
Planet	Ly alpha (photons/cm^2/sec)
Mercury    6.317e+08
Venus      6.342e+08
Earth      6.557e+08
Mars       6.536e+08
Jupiter    6.964e+08
Saturn     6.988e+08
Uranus     6.580e+08
Neptune    6.646e+08
Pluto      6.988e+08