Obs. : 2025-05-12
Planet	Ly alpha (photons/cm^2/sec)
Mercury    8.000e+08
Venus      8.013e+08
Earth      7.806e+08
Mars       8.065e+08
Jupiter    8.027e+08
Saturn     8.013e+08
Uranus     8.016e+08
Neptune    8.013e+08
Pluto      7.873e+08