Obs. : 2025-02-03
Planet	Ly alpha (photons/cm^2/sec)
Mercury    1.049e+09
Venus      9.884e+08
Earth      9.617e+08
Mars       1.009e+09
Jupiter    9.655e+08
Saturn     9.884e+08
Uranus     9.396e+08
Neptune    9.884e+08
Pluto      1.049e+09