Obs. : 2024-12-24
Planet	Ly alpha (photons/cm^2/sec)
Mercury    9.794e+08
Venus      9.536e+08
Earth      1.013e+09
Mars       1.013e+09
Jupiter    1.028e+09
Saturn     9.475e+08
Uranus     1.036e+09
Neptune    9.526e+08
Pluto      9.746e+08