Obs. : 2024-04-30
Planet	Ly alpha (photons/cm^2/sec)
Mercury    1.030e+09
Venus      1.013e+09
Earth      8.296e+08
Mars       1.025e+09
Jupiter    9.636e+08
Saturn     9.963e+08
Uranus     9.636e+08
Neptune    1.025e+09
Pluto      8.586e+08