Obs. : 2025-07-07
Planet	Ly alpha (photons/cm^2/sec)
Mercury    8.097e+08
Venus      8.074e+08
Earth      7.864e+08
Mars       8.079e+08
Jupiter    8.043e+08
Saturn     8.025e+08
Uranus     8.075e+08
Neptune    8.025e+08
Pluto      7.864e+08