Obs. : 2026-01-18
Planet	Ly alpha (photons/cm^2/sec)
Mercury    8.319e+08
Venus      8.307e+08
Earth      8.438e+08
Mars       8.319e+08
Jupiter    8.462e+08
Saturn     8.261e+08
Uranus     8.509e+08
Neptune    8.189e+08
Pluto      8.307e+08