Obs. : 2025-11-25
Planet	Ly alpha (photons/cm^2/sec)
Mercury    9.071e+08
Venus      9.071e+08
Earth      8.813e+08
Mars       9.400e+08
Jupiter    8.867e+08
Saturn     8.773e+08
Uranus     8.813e+08
Neptune    8.773e+08
Pluto      9.205e+08