Obs. : 2026-06-26
Planet	Ly alpha (photons/cm^2/sec)
Mercury    8.124e+08
Venus      8.233e+08
Earth      8.658e+08
Mars       7.612e+08
Jupiter    8.124e+08
Saturn     8.001e+08
Uranus     7.612e+08
Neptune    8.201e+08
Pluto      8.658e+08