Obs. : 2020-08-19
Planet	Ly alpha (photons/cm^2/sec)
Mercury    6.254e+08
Venus      6.553e+08
Earth      6.393e+08
Mars       6.455e+08
Jupiter    6.292e+08
Saturn     6.292e+08
Uranus     6.498e+08
Neptune    6.393e+08
Pluto      6.292e+08