Obs. : 2024-04-29
Planet	Ly alpha (photons/cm^2/sec)
Mercury    1.029e+09
Venus      1.002e+09
Earth      8.233e+08
Mars       1.028e+09
Jupiter    9.541e+08
Saturn     1.026e+09
Uranus     9.541e+08
Neptune    1.028e+09
Pluto      8.801e+08