Obs. : 2026-10-25
Planet	Ly alpha (photons/cm^2/sec)
Mercury    7.436e+08
Venus      7.599e+08
Earth      6.715e+08
Mars       7.333e+08
Jupiter    7.456e+08
Saturn     6.715e+08
Uranus     6.929e+08
Neptune    6.701e+08
Pluto      7.139e+08