Obs. : 2026-01-29
Planet	Ly alpha (photons/cm^2/sec)
Mercury    8.367e+08
Venus      8.367e+08
Earth      8.213e+08
Mars       8.221e+08
Jupiter    8.534e+08
Saturn     8.730e+08
Uranus     8.895e+08
Neptune    8.730e+08
Pluto      8.221e+08