Obs. : 2024-08-21
Planet	Ly alpha (photons/cm^2/sec)
Mercury    1.074e+09
Venus      1.078e+09
Earth      9.731e+08
Mars       9.693e+08
Jupiter    9.693e+08
Saturn     9.774e+08
Uranus     9.649e+08
Neptune    9.774e+08
Pluto      9.413e+08