Obs. : 2020-11-14
Planet	Ly alpha (photons/cm^2/sec)
Mercury    6.924e+08
Venus      6.916e+08
Earth      6.560e+08
Mars       6.575e+08
Jupiter    6.833e+08
Saturn     6.782e+08
Uranus     6.560e+08
Neptune    6.646e+08
Pluto      6.833e+08