Obs. : 2026-04-24
Planet	Ly alpha (photons/cm^2/sec)
Mercury    7.125e+08
Venus      7.028e+08
Earth      8.056e+08
Mars       7.125e+08
Jupiter    7.202e+08
Saturn     7.125e+08
Uranus     7.028e+08
Neptune    7.134e+08
Pluto      7.163e+08