Obs. : 2025-06-11
Planet	Ly alpha (photons/cm^2/sec)
Mercury    8.093e+08
Venus      7.954e+08
Earth      8.020e+08
Mars       8.100e+08
Jupiter    8.094e+08
Saturn     8.039e+08
Uranus     8.028e+08
Neptune    8.039e+08
Pluto      8.090e+08