Obs. : 2023-05-05
Planet	Ly alpha (photons/cm^2/sec)
Mercury    8.880e+08
Venus      8.725e+08
Earth      9.092e+08
Mars       8.846e+08
Jupiter    8.924e+08
Saturn     9.005e+08
Uranus     8.831e+08
Neptune    9.029e+08
Pluto      8.773e+08