Obs. : 2026-06-08
Planet	Ly alpha (photons/cm^2/sec)
Mercury    8.385e+08
Venus      8.378e+08
Earth      7.786e+08
Mars       8.169e+08
Jupiter    8.378e+08
Saturn     8.114e+08
Uranus     8.140e+08
Neptune    8.114e+08
Pluto      7.910e+08