Obs. : 2023-10-01
Planet	Ly alpha (photons/cm^2/sec)
Mercury    9.135e+08
Venus      8.949e+08
Earth      9.506e+08
Mars       9.165e+08
Jupiter    9.365e+08
Saturn     9.695e+08
Uranus     9.365e+08
Neptune    9.506e+08
Pluto      9.753e+08