Obs. : 2026-03-23
Planet	Ly alpha (photons/cm^2/sec)
Mercury    7.482e+08
Venus      7.800e+08
Earth      7.528e+08
Mars       7.482e+08
Jupiter    7.744e+08
Saturn     7.784e+08
Uranus     7.783e+08
Neptune    7.563e+08
Pluto      7.387e+08