Obs. : 2026-10-04
Planet	Ly alpha (photons/cm^2/sec)
Mercury    8.028e+08
Venus      8.028e+08
Earth      7.352e+08
Mars       7.336e+08
Jupiter    7.329e+08
Saturn     7.352e+08
Uranus     7.423e+08
Neptune    7.352e+08
Pluto      7.715e+08