Obs. : 2023-05-20
Planet	Ly alpha (photons/cm^2/sec)
Mercury    9.249e+08
Venus      8.748e+08
Earth      8.837e+08
Mars       8.747e+08
Jupiter    9.249e+08
Saturn     8.980e+08
Uranus     8.967e+08
Neptune    9.221e+08
Pluto      8.695e+08