Obs. : 2026-04-15
Planet	Ly alpha (photons/cm^2/sec)
Mercury    7.315e+08
Venus      7.565e+08
Earth      6.999e+08
Mars       7.315e+08
Jupiter    7.253e+08
Saturn     7.315e+08
Uranus     7.504e+08
Neptune    7.315e+08
Pluto      6.904e+08