Obs. : 2022-04-21
Planet	Ly alpha (photons/cm^2/sec)
Mercury    8.009e+08
Venus      7.603e+08
Earth      8.158e+08
Mars       7.583e+08
Jupiter    7.603e+08
Saturn     7.527e+08
Uranus     7.880e+08
Neptune    7.603e+08
Pluto      7.564e+08