Obs. : 2025-12-09
Planet	Ly alpha (photons/cm^2/sec)
Mercury    8.642e+08
Venus      8.795e+08
Earth      8.376e+08
Mars       8.784e+08
Jupiter    7.930e+08
Saturn     9.274e+08
Uranus     8.820e+08
Neptune    9.274e+08
Pluto      8.828e+08