Obs. : 2025-02-02
Planet	Ly alpha (photons/cm^2/sec)
Mercury    1.030e+09
Venus      9.759e+08
Earth      9.673e+08
Mars       9.936e+08
Jupiter    9.373e+08
Saturn     1.009e+09
Uranus     9.223e+08
Neptune    1.009e+09
Pluto      1.030e+09