Obs. : 2025-03-22
Planet	Ly alpha (photons/cm^2/sec)
Mercury    8.543e+08
Venus      8.679e+08
Earth      8.836e+08
Mars       8.820e+08
Jupiter    8.882e+08
Saturn     8.679e+08
Uranus     8.824e+08
Neptune    8.679e+08
Pluto      9.537e+08