Obs. : 2026-07-01
Planet	Ly alpha (photons/cm^2/sec)
Mercury    8.643e+08
Venus      8.781e+08
Earth      8.364e+08
Mars       7.850e+08
Jupiter    8.643e+08
Saturn     7.766e+08
Uranus     7.850e+08
Neptune    7.860e+08
Pluto      8.364e+08