Obs. : 2026-03-17
Planet	Ly alpha (photons/cm^2/sec)
Mercury    8.107e+08
Venus      8.103e+08
Earth      7.482e+08
Mars       8.107e+08
Jupiter    7.469e+08
Saturn     8.297e+08
Uranus     7.628e+08
Neptune    8.297e+08
Pluto      7.739e+08