Obs. : 2026-06-19
Planet	Ly alpha (photons/cm^2/sec)
Mercury    7.499e+08
Venus      7.477e+08
Earth      7.894e+08
Mars       7.679e+08
Jupiter    7.499e+08
Saturn     8.013e+08
Uranus     7.628e+08
Neptune    8.013e+08
Pluto      8.013e+08