Obs. : 2025-06-09
Planet	Ly alpha (photons/cm^2/sec)
Mercury    7.955e+08
Venus      7.804e+08
Earth      7.968e+08
Mars       7.954e+08
Jupiter    7.955e+08
Saturn     7.873e+08
Uranus     7.948e+08
Neptune    7.873e+08
Pluto      7.987e+08