Obs. : 2022-07-21
Planet	Ly alpha (photons/cm^2/sec)
Mercury    8.679e+08
Venus      8.303e+08
Earth      7.785e+08
Mars       7.716e+08
Jupiter    7.752e+08
Saturn     7.785e+08
Uranus     7.718e+08
Neptune    7.739e+08
Pluto      8.056e+08