Obs. : 2025-02-10
Planet	Ly alpha (photons/cm^2/sec)
Mercury    8.110e+08
Venus      8.286e+08
Earth      8.175e+08
Mars       7.648e+08
Jupiter    8.018e+08
Saturn     8.179e+08
Uranus     8.141e+08
Neptune    8.286e+08
Pluto      8.022e+08