Obs. : 2022-04-23
Planet	Ly alpha (photons/cm^2/sec)
Mercury    7.570e+08
Venus      7.306e+08
Earth      8.320e+08
Mars       7.328e+08
Jupiter    7.306e+08
Saturn     7.338e+08
Uranus     7.435e+08
Neptune    7.306e+08
Pluto      7.443e+08