Obs. : 2026-10-20
Planet	Ly alpha (photons/cm^2/sec)
Mercury    7.649e+08
Venus      7.703e+08
Earth      7.310e+08
Mars       7.878e+08
Jupiter    7.926e+08
Saturn     7.310e+08
Uranus     7.730e+08
Neptune    7.310e+08
Pluto      7.229e+08