Obs. : 2026-06-24
Planet	Ly alpha (photons/cm^2/sec)
Mercury    7.746e+08
Venus      7.809e+08
Earth      8.378e+08
Mars       7.527e+08
Jupiter    7.746e+08
Saturn     8.004e+08
Uranus     7.527e+08
Neptune    8.004e+08
Pluto      8.359e+08