Obs. : 2020-01-11
Planet	Ly alpha (photons/cm^2/sec)
Mercury    6.351e+08
Venus      6.351e+08
Earth      6.304e+08
Mars       6.150e+08
Jupiter    6.288e+08
Saturn     6.351e+08
Uranus     6.242e+08
Neptune    6.345e+08
Pluto      6.351e+08