Obs. : 2025-10-29
Planet	Ly alpha (photons/cm^2/sec)
Mercury    8.395e+08
Venus      8.168e+08
Earth      7.918e+08
Mars       8.395e+08
Jupiter    8.274e+08
Saturn     7.823e+08
Uranus     8.156e+08
Neptune    7.823e+08
Pluto      8.066e+08