Obs. : 2025-03-12
Planet	Ly alpha (photons/cm^2/sec)
Mercury    8.999e+08
Venus      8.999e+08
Earth      9.045e+08
Mars       9.116e+08
Jupiter    9.233e+08
Saturn     8.980e+08
Uranus     9.212e+08
Neptune    9.263e+08
Pluto      9.096e+08