Obs. : 2025-02-06
Planet	Ly alpha (photons/cm^2/sec)
Mercury    9.351e+08
Venus      8.800e+08
Earth      8.792e+08
Mars       9.349e+08
Jupiter    9.476e+08
Saturn     8.993e+08
Uranus     9.373e+08
Neptune    8.800e+08
Pluto      9.579e+08