Obs. : 2026-10-07
Planet	Ly alpha (photons/cm^2/sec)
Mercury    7.587e+08
Venus      7.587e+08
Earth      7.429e+08
Mars       7.075e+08
Jupiter    6.950e+08
Saturn     7.382e+08
Uranus     7.235e+08
Neptune    7.382e+08
Pluto      7.676e+08