Obs. : 2025-12-28
Planet	Ly alpha (photons/cm^2/sec)
Mercury    8.256e+08
Venus      8.256e+08
Earth      9.189e+08
Mars       8.137e+08
Jupiter    9.209e+08
Saturn     8.419e+08
Uranus     9.183e+08
Neptune    8.419e+08
Pluto      8.144e+08