Obs. : 2025-07-08
Planet	Ly alpha (photons/cm^2/sec)
Mercury    7.990e+08
Venus      8.002e+08
Earth      7.820e+08
Mars       7.978e+08
Jupiter    7.923e+08
Saturn     8.020e+08
Uranus     8.065e+08
Neptune    8.020e+08
Pluto      7.820e+08